diff --git a/Telegram/CMakeLists.txt b/Telegram/CMakeLists.txt
index 23f33eced..cbd0ed302 100644
--- a/Telegram/CMakeLists.txt
+++ b/Telegram/CMakeLists.txt
@@ -668,10 +668,10 @@ PRIVATE
     lang/lang_values.h
     main/main_account.cpp
     main/main_account.h
-    main/main_accounts.cpp
-    main/main_accounts.h
     main/main_app_config.cpp
     main/main_app_config.h
+    main/main_domain.cpp
+    main/main_domain.h
     main/main_session.cpp
     main/main_session.h
     main/main_session_settings.cpp
@@ -914,10 +914,10 @@ PRIVATE
     storage/serialize_peer.h
     storage/storage_account.cpp
     storage/storage_account.h
-    storage/storage_accounts.cpp
-    storage/storage_accounts.h
     storage/storage_cloud_blob.cpp
     storage/storage_cloud_blob.h
+    storage/storage_domain.cpp
+    storage/storage_domain.h
     storage/storage_facade.cpp
     storage/storage_facade.h
     # storage/storage_feed_messages.cpp
diff --git a/Telegram/SourceFiles/apiwrap.cpp b/Telegram/SourceFiles/apiwrap.cpp
index b58b2220f..d75e20d3a 100644
--- a/Telegram/SourceFiles/apiwrap.cpp
+++ b/Telegram/SourceFiles/apiwrap.cpp
@@ -470,9 +470,12 @@ void ApiWrap::importChatInvite(const QString &hash) {
 				return PeerId(0);
 			});
 			if (const auto peer = _session->data().peerLoaded(peerId)) {
-				App::wnd()->sessionController()->showPeerHistory(
-					peer,
-					Window::SectionShow::Way::Forward);
+				const auto &windows = _session->windows();
+				if (!windows.empty()) {
+					windows.front()->showPeerHistory(
+						peer,
+						Window::SectionShow::Way::Forward);
+				}
 			}
 		};
 		result.match([&](const MTPDupdates &data) {
@@ -2727,9 +2730,12 @@ void ApiWrap::requestAttachedStickerSets(not_null<PhotoData*> photo) {
 		const auto setId = (setData->vid().v && setData->vaccess_hash().v)
 			? MTP_inputStickerSetID(setData->vid(), setData->vaccess_hash())
 			: MTP_inputStickerSetShortName(setData->vshort_name());
-		Ui::show(
-			Box<StickerSetBox>(App::wnd()->sessionController(), setId),
-			Ui::LayerOption::KeepOther);
+		const auto &windows = _session->windows();
+		if (!windows.empty()) {
+			Ui::show(
+				Box<StickerSetBox>(windows.front(), setId),
+				Ui::LayerOption::KeepOther);
+		}
 	}).fail([=](const RPCError &error) {
 		Ui::show(Box<InformBox>(tr::lng_stickers_not_found(tr::now)));
 	}).send();
diff --git a/Telegram/SourceFiles/boxes/add_contact_box.cpp b/Telegram/SourceFiles/boxes/add_contact_box.cpp
index f83587791..94dc88f20 100644
--- a/Telegram/SourceFiles/boxes/add_contact_box.cpp
+++ b/Telegram/SourceFiles/boxes/add_contact_box.cpp
@@ -40,7 +40,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "apiwrap.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "facades.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
@@ -482,7 +481,7 @@ void GroupInfoBox::prepare() {
 	_title->setMaxLength(kMaxGroupChannelTitle);
 	_title->setInstantReplaces(Ui::InstantReplaces::Default());
 	_title->setInstantReplacesEnabled(
-		_navigation->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	Ui::Emoji::SuggestionsController::Init(
 		getDelegate()->outerContainer(),
 		_title,
@@ -498,8 +497,9 @@ void GroupInfoBox::prepare() {
 		_description->setMaxLength(kMaxChannelDescription);
 		_description->setInstantReplaces(Ui::InstantReplaces::Default());
 		_description->setInstantReplacesEnabled(
-			_navigation->session().settings().replaceEmojiValue());
-		_description->setSubmitSettings(_navigation->session().settings().sendSubmitWay());
+			Core::App().settings().replaceEmojiValue());
+		_description->setSubmitSettings(
+			Core::App().settings().sendSubmitWay());
 
 		connect(_description, &Ui::InputField::resized, [=] { descriptionResized(); });
 		connect(_description, &Ui::InputField::submitted, [=] { submit(); });
diff --git a/Telegram/SourceFiles/boxes/auto_lock_box.cpp b/Telegram/SourceFiles/boxes/auto_lock_box.cpp
index aa6ab468a..94cf9da88 100644
--- a/Telegram/SourceFiles/boxes/auto_lock_box.cpp
+++ b/Telegram/SourceFiles/boxes/auto_lock_box.cpp
@@ -11,7 +11,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/localstorage.h"
 #include "core/application.h"
 #include "mainwindow.h"
-#include "main/main_session.h"
 #include "ui/widgets/checkbox.h"
 #include "facades.h"
 #include "styles/style_layers.h"
@@ -28,7 +27,8 @@ void AutoLockBox::prepare() {
 
 	auto options = { 60, 300, 3600, 18000 };
 
-	auto group = std::make_shared<Ui::RadiobuttonGroup>(Global::AutoLock());
+	auto group = std::make_shared<Ui::RadiobuttonGroup>(
+		Core::App().settings().autoLock());
 	auto y = st::boxOptionListPadding.top() + st::autolockButton.margin.top();
 	auto count = int(options.size());
 	_options.reserve(count);
@@ -43,8 +43,8 @@ void AutoLockBox::prepare() {
 }
 
 void AutoLockBox::durationChanged(int seconds) {
-	Global::SetAutoLock(seconds);
-	_session->saveSettingsDelayed();
+	Core::App().settings().setAutoLock(seconds);
+	Core::App().saveSettingsDelayed();
 	Global::RefLocalPasscodeChanged().notify();
 
 	Core::App().checkAutoLock();
diff --git a/Telegram/SourceFiles/boxes/confirm_box.cpp b/Telegram/SourceFiles/boxes/confirm_box.cpp
index 0de763d7b..51446bb1c 100644
--- a/Telegram/SourceFiles/boxes/confirm_box.cpp
+++ b/Telegram/SourceFiles/boxes/confirm_box.cpp
@@ -770,9 +770,10 @@ void DeleteMessagesBox::deleteAndClear() {
 		if (justClear) {
 			peer->session().api().clearHistory(peer, revoke);
 		} else {
-			const auto controller = App::wnd()->sessionController();
-			if (controller->activeChatCurrent().peer() == peer) {
-				Ui::showChatsList();
+			for (const auto controller : peer->session().windows()) {
+				if (controller->activeChatCurrent().peer() == peer) {
+					Ui::showChatsList(&peer->session());
+				}
 			}
 			// Don't delete old history by default,
 			// because Android app doesn't.
diff --git a/Telegram/SourceFiles/boxes/create_poll_box.cpp b/Telegram/SourceFiles/boxes/create_poll_box.cpp
index 4ab656946..321b88153 100644
--- a/Telegram/SourceFiles/boxes/create_poll_box.cpp
+++ b/Telegram/SourceFiles/boxes/create_poll_box.cpp
@@ -20,7 +20,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/checkbox.h"
 #include "ui/toast/toast.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
 #include "chat_helpers/message_field.h"
 #include "history/view/history_view_schedule_box.h"
@@ -161,7 +162,7 @@ void InitField(
 		not_null<Main::Session*> session) {
 	field->setInstantReplaces(Ui::InstantReplaces::Default());
 	field->setInstantReplacesEnabled(
-		session->settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	auto options = Ui::Emoji::SuggestionsController::Options();
 	options.suggestExactFirstWord = false;
 	Ui::Emoji::SuggestionsController::Init(
@@ -841,7 +842,7 @@ not_null<Ui::InputField*> CreatePollBox::setupSolution(
 	solution->setMaxLength(kSolutionLimit + kErrorLimit);
 	solution->setInstantReplaces(Ui::InstantReplaces::Default());
 	solution->setInstantReplacesEnabled(
-		session->settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	solution->setMarkdownReplacesEnabled(rpl::single(true));
 	solution->setEditLinkCallback(
 		DefaultEditLinkCallback(_controller, solution));
diff --git a/Telegram/SourceFiles/boxes/dictionaries_manager.cpp b/Telegram/SourceFiles/boxes/dictionaries_manager.cpp
index 0a9e10640..f7776a0ad 100644
--- a/Telegram/SourceFiles/boxes/dictionaries_manager.cpp
+++ b/Telegram/SourceFiles/boxes/dictionaries_manager.cpp
@@ -13,8 +13,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "chat_helpers/spellchecker_common.h"
 #include "core/application.h"
 #include "main/main_account.h"
-#include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mainwidget.h"
 #include "mtproto/dedicated_file_loader.h"
 #include "spellcheck/spellcheck_utils.h"
@@ -405,7 +403,7 @@ void ManageDictionariesBox::prepare() {
 		object_ptr<Inner>(
 			this,
 			_controller,
-			session->settings().dictionariesEnabled()),
+			Core::App().settings().dictionariesEnabled()),
 		st::boxScroll,
 		multiSelect->height()
 	);
@@ -423,9 +421,9 @@ void ManageDictionariesBox::prepare() {
 	setTitle(tr::lng_settings_manage_dictionaries());
 
 	addButton(tr::lng_settings_save(), [=] {
-		session->settings().setDictionariesEnabled(
+		Core::App().settings().setDictionariesEnabled(
 			FilterEnabledDict(inner->enabledRows()));
-		session->saveSettingsDelayed();
+		Core::App().saveSettingsDelayed();
 		// Ignore boxClosing() when the Save button was pressed.
 		lifetime().destroy();
 		closeBox();
@@ -433,9 +431,9 @@ void ManageDictionariesBox::prepare() {
 	addButton(tr::lng_close(), [=] { closeBox(); });
 
 	boxClosing() | rpl::start_with_next([=] {
-		session->settings().setDictionariesEnabled(
+		Core::App().settings().setDictionariesEnabled(
 			FilterEnabledDict(initialEnabledRows));
-		session->saveSettingsDelayed();
+		Core::App().saveSettingsDelayed();
 	}, lifetime());
 
 	setDimensionsToContent(st::boxWidth, inner);
diff --git a/Telegram/SourceFiles/boxes/download_path_box.cpp b/Telegram/SourceFiles/boxes/download_path_box.cpp
index 4ddae0f47..a484225e0 100644
--- a/Telegram/SourceFiles/boxes/download_path_box.cpp
+++ b/Telegram/SourceFiles/boxes/download_path_box.cpp
@@ -12,9 +12,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/checkbox.h"
 #include "ui/widgets/buttons.h"
 #include "platform/platform_specific.h"
-#include "facades.h"
-#include "window/window_session_controller.h"
-#include "main/main_session.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "storage/storage_account.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
@@ -23,8 +22,8 @@ DownloadPathBox::DownloadPathBox(
 	QWidget *parent,
 	not_null<Window::SessionController*> controller)
 : _controller(controller)
-, _path(Global::DownloadPath())
-, _pathBookmark(Global::DownloadPathBookmark())
+, _path(Core::App().settings().downloadPath())
+, _pathBookmark(Core::App().settings().downloadPathBookmark())
 , _group(std::make_shared<Ui::RadioenumGroup<Directory>>(typeFromPath(_path)))
 , _default(this, _group, Directory::Downloads, tr::lng_download_path_default_radio(tr::now), st::defaultBoxCheckbox)
 , _temp(this, _group, Directory::Temp, tr::lng_download_path_temp_radio(tr::now), st::defaultBoxCheckbox)
@@ -91,8 +90,9 @@ void DownloadPathBox::radioChanged(Directory value) {
 
 void DownloadPathBox::editPath() {
 	const auto initialPath = [] {
-		if (!Global::DownloadPath().isEmpty() && Global::DownloadPath() != qstr("tmp")) {
-			return Global::DownloadPath().left(Global::DownloadPath().size() - (Global::DownloadPath().endsWith('/') ? 1 : 0));
+		const auto path = Core::App().settings().downloadPath();
+		if (!path.isEmpty() && path != qstr("tmp")) {
+			return path.left(path.size() - (path.endsWith('/') ? 1 : 0));
 		}
 		return QString();
 	}();
@@ -122,10 +122,10 @@ void DownloadPathBox::save() {
 		}
 		return QString();
 	};
-	Global::SetDownloadPath(computePath());
-	Global::SetDownloadPathBookmark((value == Directory::Custom) ? _pathBookmark : QByteArray());
-	_controller->session().saveSettings();
-	Global::RefDownloadPathChanged().notify();
+	Core::App().settings().setDownloadPathBookmark(
+		(value == Directory::Custom) ? _pathBookmark : QByteArray());
+	Core::App().settings().setDownloadPath(computePath());
+	Core::App().saveSettings();
 	closeBox();
 #endif // OS_WIN_STORE
 }
diff --git a/Telegram/SourceFiles/boxes/edit_caption_box.cpp b/Telegram/SourceFiles/boxes/edit_caption_box.cpp
index 972df7d07..0c331acfa 100644
--- a/Telegram/SourceFiles/boxes/edit_caption_box.cpp
+++ b/Telegram/SourceFiles/boxes/edit_caption_box.cpp
@@ -10,12 +10,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "apiwrap.h"
 #include "api/api_text_entities.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
 #include "chat_helpers/message_field.h"
 #include "chat_helpers/tabbed_panel.h"
 #include "chat_helpers/tabbed_selector.h"
 #include "base/event_filter.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "core/file_utilities.h"
 #include "core/mime_type.h"
 #include "data/data_document.h"
@@ -309,10 +310,10 @@ EditCaptionBox::EditCaptionBox(
 	_field->setMaxLength(
 		_controller->session().serverConfig().captionLengthMax);
 	_field->setSubmitSettings(
-		_controller->session().settings().sendSubmitWay());
+		Core::App().settings().sendSubmitWay());
 	_field->setInstantReplaces(Ui::InstantReplaces::Default());
 	_field->setInstantReplacesEnabled(
-		_controller->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	_field->setMarkdownReplacesEnabled(rpl::single(true));
 	_field->setEditLinkCallback(
 		DefaultEditLinkCallback(_controller, _field));
diff --git a/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp b/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
index a9d601823..081503c4f 100644
--- a/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
+++ b/Telegram/SourceFiles/boxes/filters/edit_filter_box.cpp
@@ -19,12 +19,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_chat_filters.h"
 #include "data/data_peer.h"
 #include "data/data_session.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "settings/settings_common.h"
 #include "base/event_filter.h"
 #include "lang/lang_keys.h"
 #include "history/history.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "window/window_session_controller.h"
 #include "window/window_controller.h"
 #include "apiwrap.h"
@@ -501,7 +502,7 @@ void EditFilterBox(
 	name->setMaxLength(kMaxFilterTitleLength);
 	name->setInstantReplaces(Ui::InstantReplaces::Default());
 	name->setInstantReplacesEnabled(
-		window->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	Ui::Emoji::SuggestionsController::Init(
 		box->getDelegate()->outerContainer(),
 		name,
diff --git a/Telegram/SourceFiles/boxes/passcode_box.cpp b/Telegram/SourceFiles/boxes/passcode_box.cpp
index 166062615..624bd2c91 100644
--- a/Telegram/SourceFiles/boxes/passcode_box.cpp
+++ b/Telegram/SourceFiles/boxes/passcode_box.cpp
@@ -14,9 +14,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "apiwrap.h"
 #include "main/main_session.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "core/application.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/input_fields.h"
 #include "ui/widgets/labels.h"
@@ -452,7 +452,7 @@ void PasscodeBox::save(bool force) {
 			return;
 		}
 
-		if (Core::App().accounts().local().checkPasscode(old.toUtf8())) {
+		if (Core::App().domain().local().checkPasscode(old.toUtf8())) {
 			cSetPasscodeBadTries(0);
 			if (_turningOff) pwd = conf = QString();
 		} else {
@@ -520,7 +520,7 @@ void PasscodeBox::save(bool force) {
 		closeReplacedBy();
 		const auto weak = Ui::MakeWeak(this);
 		cSetPasscodeBadTries(0);
-		Core::App().accounts().local().setPasscode(pwd.toUtf8());
+		Core::App().domain().local().setPasscode(pwd.toUtf8());
 		Core::App().localPasscodeChanged();
 		if (weak) {
 			closeBox();
diff --git a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
index c082c447f..67a19c655 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
@@ -35,7 +35,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/core_cloud_password.h"
 #include "base/unixtime.h"
 #include "apiwrap.h"
-#include "facades.h"
 #include "main/main_session.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
diff --git a/Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp
index 1b51a116e..2d107db94 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_peer_info_box.cpp
@@ -9,7 +9,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "apiwrap.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "boxes/add_contact_box.h"
 #include "boxes/confirm_box.h"
 #include "boxes/peer_list_controllers.h"
@@ -20,6 +19,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/peers/edit_linked_chat_box.h"
 #include "boxes/stickers_box.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "data/data_channel.h"
 #include "data/data_chat.h"
 #include "data/data_peer.h"
@@ -465,7 +466,7 @@ object_ptr<Ui::RpWidget> Controller::createTitleEdit() {
 	result->entity()->setMaxLength(kMaxGroupChannelTitle);
 	result->entity()->setInstantReplaces(Ui::InstantReplaces::Default());
 	result->entity()->setInstantReplacesEnabled(
-		_peer->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	Ui::Emoji::SuggestionsController::Init(
 		_wrap->window(),
 		result->entity(),
@@ -499,8 +500,8 @@ object_ptr<Ui::RpWidget> Controller::createDescriptionEdit() {
 	result->entity()->setMaxLength(kMaxChannelDescription);
 	result->entity()->setInstantReplaces(Ui::InstantReplaces::Default());
 	result->entity()->setInstantReplacesEnabled(
-		_peer->session().settings().replaceEmojiValue());
-	result->entity()->setSubmitSettings(_peer->session().settings().sendSubmitWay());
+		Core::App().settings().replaceEmojiValue());
+	result->entity()->setSubmitSettings(Core::App().settings().sendSubmitWay());
 	Ui::Emoji::SuggestionsController::Init(
 		_wrap->window(),
 		result->entity(),
@@ -1443,7 +1444,7 @@ void Controller::deleteChannel() {
 	const auto session = &_peer->session();
 
 	Ui::hideLayer();
-	Ui::showChatsList();
+	Ui::showChatsList(session);
 	if (chat) {
 		session->api().deleteConversation(chat, false);
 	}
diff --git a/Telegram/SourceFiles/boxes/rate_call_box.cpp b/Telegram/SourceFiles/boxes/rate_call_box.cpp
index 265963de1..1e8914201 100644
--- a/Telegram/SourceFiles/boxes/rate_call_box.cpp
+++ b/Telegram/SourceFiles/boxes/rate_call_box.cpp
@@ -14,7 +14,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/input_fields.h"
 #include "mainwindow.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "apiwrap.h"
 #include "styles/style_layers.h"
 #include "styles/style_calls.h"
@@ -86,7 +87,7 @@ void RateCallBox::ratingChanged(int value) {
 				Ui::InputField::Mode::MultiLine,
 				tr::lng_call_rate_comment());
 			_comment->show();
-			_comment->setSubmitSettings(_session->settings().sendSubmitWay());
+			_comment->setSubmitSettings(Core::App().settings().sendSubmitWay());
 			_comment->setMaxLength(kRateCallCommentLengthMax);
 			_comment->resize(width() - (st::callRatingPadding.left() + st::callRatingPadding.right()), _comment->height());
 
diff --git a/Telegram/SourceFiles/boxes/report_box.cpp b/Telegram/SourceFiles/boxes/report_box.cpp
index 72e9e85b6..4d6cb79a1 100644
--- a/Telegram/SourceFiles/boxes/report_box.cpp
+++ b/Telegram/SourceFiles/boxes/report_box.cpp
@@ -10,13 +10,14 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "data/data_peer.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "boxes/confirm_box.h"
 #include "ui/widgets/checkbox.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/input_fields.h"
 #include "ui/toast/toast.h"
 #include "mainwindow.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
 #include "styles/style_profile.h"
@@ -109,7 +110,7 @@ void ReportBox::reasonChanged(Reason reason) {
 				Ui::InputField::Mode::MultiLine,
 				tr::lng_report_reason_description());
 			_reasonOtherText->show();
-			_reasonOtherText->setSubmitSettings(_peer->session().settings().sendSubmitWay());
+			_reasonOtherText->setSubmitSettings(Core::App().settings().sendSubmitWay());
 			_reasonOtherText->setMaxLength(kReportReasonLengthMax);
 			_reasonOtherText->resize(width() - (st::boxPadding.left() + st::boxOptionListPadding.left() + st::boxPadding.right()), _reasonOtherText->height());
 
diff --git a/Telegram/SourceFiles/boxes/send_files_box.cpp b/Telegram/SourceFiles/boxes/send_files_box.cpp
index 0ea2a109e..2594bfd64 100644
--- a/Telegram/SourceFiles/boxes/send_files_box.cpp
+++ b/Telegram/SourceFiles/boxes/send_files_box.cpp
@@ -13,7 +13,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_media_prepare.h"
 #include "mainwidget.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mtproto/mtproto_config.h"
 #include "chat_helpers/message_field.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
@@ -38,6 +37,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/clip/media_clip_reader.h"
 #include "api/api_common.h"
 #include "window/window_session_controller.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "layout.h"
 #include "facades.h" // App::LambdaDelayed.
 #include "app.h"
@@ -1913,7 +1914,7 @@ void SendFilesBox::initSendWay() {
 				? SendFilesWay::Album
 				: SendFilesWay::Photos;
 		}
-		const auto way = _controller->session().settings().sendFilesWay();
+		const auto way = Core::App().settings().sendFilesWay();
 		if (way == SendFilesWay::Files) {
 			return way;
 		} else if (way == SendFilesWay::Album) {
@@ -2047,7 +2048,7 @@ void SendFilesBox::setupCaption() {
 	_caption->setMaxLength(
 		_controller->session().serverConfig().captionLengthMax);
 	_caption->setSubmitSettings(
-		_controller->session().settings().sendSubmitWay());
+		Core::App().settings().sendSubmitWay());
 	connect(_caption, &Ui::InputField::resized, [=] {
 		captionResized();
 	});
@@ -2071,7 +2072,7 @@ void SendFilesBox::setupCaption() {
 	});
 	_caption->setInstantReplaces(Ui::InstantReplaces::Default());
 	_caption->setInstantReplacesEnabled(
-		_controller->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	_caption->setMarkdownReplacesEnabled(rpl::single(true));
 	_caption->setEditLinkCallback(
 		DefaultEditLinkCallback(_controller, _caption));
@@ -2344,7 +2345,7 @@ void SendFilesBox::send(
 	const auto way = _sendWay ? _sendWay->value() : Way::Files;
 
 	if (_compressConfirm == CompressConfirm::Auto) {
-		const auto oldWay = _controller->session().settings().sendFilesWay();
+		const auto oldWay = Core::App().settings().sendFilesWay();
 		if (way != oldWay) {
 			// Check if the user _could_ use the old value, but didn't.
 			if ((oldWay == Way::Album && _sendAlbum)
@@ -2352,8 +2353,8 @@ void SendFilesBox::send(
 				|| (oldWay == Way::Files && _sendFiles)
 				|| (way == Way::Files && (_sendAlbum || _sendPhotos))) {
 				// And in that case save it to settings.
-				_controller->session().settings().setSendFilesWay(way);
-				_controller->session().saveSettingsDelayed();
+				Core::App().settings().setSendFilesWay(way);
+				Core::App().saveSettingsDelayed();
 			}
 		}
 	}
diff --git a/Telegram/SourceFiles/boxes/share_box.cpp b/Telegram/SourceFiles/boxes/share_box.cpp
index 573c6efb1..11f1264a5 100644
--- a/Telegram/SourceFiles/boxes/share_box.cpp
+++ b/Telegram/SourceFiles/boxes/share_box.cpp
@@ -36,7 +36,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_folder.h"
 #include "data/data_changes.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "core/application.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
@@ -200,11 +199,11 @@ void ShareBox::prepareCommentField() {
 
 	field->setInstantReplaces(Ui::InstantReplaces::Default());
 	field->setInstantReplacesEnabled(
-		_navigation->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	field->setMarkdownReplacesEnabled(rpl::single(true));
 	field->setEditLinkCallback(
 		DefaultEditLinkCallback(_navigation->parentController(), field));
-	field->setSubmitSettings(_navigation->session().settings().sendSubmitWay());
+	field->setSubmitSettings(Core::App().settings().sendSubmitWay());
 
 	InitSpellchecker(_navigation->parentController(), field);
 	Ui::SendPendingMoveResizeEvents(_comment);
diff --git a/Telegram/SourceFiles/boxes/stickers_box.cpp b/Telegram/SourceFiles/boxes/stickers_box.cpp
index 3ebeb1053..d533c5aaf 100644
--- a/Telegram/SourceFiles/boxes/stickers_box.cpp
+++ b/Telegram/SourceFiles/boxes/stickers_box.cpp
@@ -35,7 +35,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/image/image.h"
 #include "window/window_session_controller.h"
 #include "main/main_session.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
diff --git a/Telegram/SourceFiles/calls/calls_box_controller.cpp b/Telegram/SourceFiles/calls/calls_box_controller.cpp
index b3eb152be..e7ff96d7f 100644
--- a/Telegram/SourceFiles/calls/calls_box_controller.cpp
+++ b/Telegram/SourceFiles/calls/calls_box_controller.cpp
@@ -20,7 +20,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_session.h"
 #include "data/data_media_types.h"
 #include "data/data_user.h"
-#include "facades.h"
 #include "app.h"
 
 namespace Calls {
diff --git a/Telegram/SourceFiles/calls/calls_call.cpp b/Telegram/SourceFiles/calls/calls_call.cpp
index 565441bc6..e317b6a38 100644
--- a/Telegram/SourceFiles/calls/calls_call.cpp
+++ b/Telegram/SourceFiles/calls/calls_call.cpp
@@ -8,7 +8,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_call.h"
 
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "apiwrap.h"
 #include "lang/lang_keys.h"
 #include "boxes/confirm_box.h"
@@ -17,6 +16,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/openssl_help.h"
 #include "mtproto/mtproto_dh_utils.h"
 #include "mtproto/mtproto_config.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "media/audio/media_audio_track.h"
 #include "base/platform/base_platform_info.h"
 #include "calls/calls_panel.h"
@@ -308,7 +309,7 @@ QString Call::getDebugLog() const {
 
 void Call::startWaitingTrack() {
 	_waitingTrack = Media::Audio::Current().createTrack();
-	auto trackFileName = _user->session().settings().getSoundPath(
+	auto trackFileName = Core::App().settings().getSoundPath(
 		(_type == Type::Outgoing)
 		? qsl("call_outgoing")
 		: qsl("call_incoming"));
@@ -610,13 +611,14 @@ void Call::createAndStartController(const MTPDphoneCall &call) {
 	if (_mute) {
 		raw->setMuteMicrophone(_mute);
 	}
+	const auto &settings = Core::App().settings();
 	raw->setAudioOutputDevice(
-		Global::CallOutputDeviceID().toStdString());
+		settings.callOutputDeviceID().toStdString());
 	raw->setAudioInputDevice(
-		Global::CallInputDeviceID().toStdString());
-	raw->setOutputVolume(Global::CallOutputVolume() / 100.0f);
-	raw->setInputVolume(Global::CallInputVolume() / 100.0f);
-	raw->setAudioOutputDuckingEnabled(Global::CallAudioDuckingEnabled());
+		settings.callInputDeviceID().toStdString());
+	raw->setOutputVolume(settings.callOutputVolume() / 100.0f);
+	raw->setInputVolume(settings.callInputVolume() / 100.0f);
+	raw->setAudioOutputDuckingEnabled(settings.callAudioDuckingEnabled());
 }
 
 void Call::handleControllerStateChange(
diff --git a/Telegram/SourceFiles/calls/calls_instance.cpp b/Telegram/SourceFiles/calls/calls_instance.cpp
index 3c590171b..ffd331214 100644
--- a/Telegram/SourceFiles/calls/calls_instance.cpp
+++ b/Telegram/SourceFiles/calls/calls_instance.cpp
@@ -10,7 +10,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/mtproto_dh_utils.h"
 #include "core/application.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "apiwrap.h"
 #include "lang/lang_keys.h"
 #include "boxes/confirm_box.h"
@@ -74,7 +73,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callBusyTrack) {
 			_callBusyTrack = Media::Audio::Current().createTrack();
 			_callBusyTrack->fillFromFile(
-				_session->settings().getSoundPath(qsl("call_busy")));
+				Core::App().settings().getSoundPath(qsl("call_busy")));
 		}
 		_callBusyTrack->playOnce();
 	} break;
@@ -83,7 +82,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callEndedTrack) {
 			_callEndedTrack = Media::Audio::Current().createTrack();
 			_callEndedTrack->fillFromFile(
-				_session->settings().getSoundPath(qsl("call_end")));
+				Core::App().settings().getSoundPath(qsl("call_end")));
 		}
 		_callEndedTrack->playOnce();
 	} break;
@@ -92,7 +91,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callConnectingTrack) {
 			_callConnectingTrack = Media::Audio::Current().createTrack();
 			_callConnectingTrack->fillFromFile(
-				_session->settings().getSoundPath(qsl("call_connect")));
+				Core::App().settings().getSoundPath(qsl("call_connect")));
 		}
 		_callConnectingTrack->playOnce();
 	} break;
diff --git a/Telegram/SourceFiles/chat_helpers/emoji_keywords.cpp b/Telegram/SourceFiles/chat_helpers/emoji_keywords.cpp
index dc93f4561..5897e014f 100644
--- a/Telegram/SourceFiles/chat_helpers/emoji_keywords.cpp
+++ b/Telegram/SourceFiles/chat_helpers/emoji_keywords.cpp
@@ -13,7 +13,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/application.h"
 #include "base/platform/base_platform_info.h"
 #include "ui/emoji_config.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_session.h"
 #include "apiwrap.h"
 
@@ -516,7 +516,7 @@ void EmojiKeywords::langPackRefreshed() {
 }
 
 void EmojiKeywords::handleSessionChanges() {
-	Core::App().accounts().activeSessionValue( // #TODO multi someSessionValue
+	Core::App().domain().activeSessionValue( // #TODO multi someSessionValue
 	) | rpl::map([](Main::Session *session) {
 		return session ? &session->api() : nullptr;
 	}) | rpl::start_with_next([=](ApiWrap *api) {
diff --git a/Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp b/Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp
index 7b098d228..ec66b0cfc 100644
--- a/Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp
+++ b/Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp
@@ -16,7 +16,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "emoji_suggestions_data.h"
 #include "emoji_suggestions_helper.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "window/window_session_controller.h"
 #include "facades.h"
 #include "app.h"
@@ -837,8 +838,7 @@ void EmojiListWidget::setSelected(int newSelected) {
 	_selected = newSelected;
 	updateSelected();
 
-	if (_selected >= 0
-		&& controller()->session().settings().suggestEmoji()) {
+	if (_selected >= 0 && Core::App().settings().suggestEmoji()) {
 		Ui::Tooltip::Show(1000, this);
 	}
 
diff --git a/Telegram/SourceFiles/chat_helpers/emoji_suggestions_widget.cpp b/Telegram/SourceFiles/chat_helpers/emoji_suggestions_widget.cpp
index f33bb7b6c..d5df3086d 100644
--- a/Telegram/SourceFiles/chat_helpers/emoji_suggestions_widget.cpp
+++ b/Telegram/SourceFiles/chat_helpers/emoji_suggestions_widget.cpp
@@ -8,6 +8,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "chat_helpers/emoji_suggestions_widget.h"
 
 #include "chat_helpers/emoji_keywords.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "emoji_suggestions_helper.h"
 #include "ui/effects/ripple_animation.h"
 #include "ui/widgets/shadow.h"
@@ -19,7 +21,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/application.h"
 #include "base/event_filter.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "app.h"
 #include "styles/style_chat_helpers.h"
 
@@ -608,7 +609,7 @@ void SuggestionsController::setReplaceCallback(
 }
 
 void SuggestionsController::handleTextChange() {
-	if (_session->settings().suggestEmoji()
+	if (Core::App().settings().suggestEmoji()
 		&& _field->textCursor().position() > 0) {
 		Core::App().emojiKeywords().refresh();
 	}
@@ -638,7 +639,7 @@ void SuggestionsController::showWithQuery(const QString &query) {
 }
 
 QString SuggestionsController::getEmojiQuery() {
-	if (!_session->settings().suggestEmoji()) {
+	if (!Core::App().settings().suggestEmoji()) {
 		return QString();
 	}
 
diff --git a/Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp b/Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp
index c1480a007..790adb725 100644
--- a/Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp
+++ b/Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp
@@ -21,6 +21,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "apiwrap.h"
 #include "main/main_session.h"
 #include "storage/storage_account.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "lottie/lottie_single_player.h"
 #include "ui/widgets/scroll_area.h"
 #include "ui/image/image.h"
@@ -563,7 +565,7 @@ bool FieldAutocomplete::chooseSelected(ChooseMethod method) const {
 
 bool FieldAutocomplete::eventFilter(QObject *obj, QEvent *e) {
 	auto hidden = isHidden();
-	auto moderate = Global::ModerateModeEnabled();
+	auto moderate = Core::App().settings().moderateModeEnabled();
 	if (hidden && !moderate) return QWidget::eventFilter(obj, e);
 
 	if (e->type() == QEvent::KeyPress) {
diff --git a/Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp b/Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp
index cefddad5c..1418490ce 100644
--- a/Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp
+++ b/Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp
@@ -28,7 +28,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "window/window_session_controller.h"
 #include "history/view/history_view_cursor_state.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_chat_helpers.h"
 
diff --git a/Telegram/SourceFiles/chat_helpers/message_field.cpp b/Telegram/SourceFiles/chat_helpers/message_field.cpp
index 297601ad0..9c6db61ba 100644
--- a/Telegram/SourceFiles/chat_helpers/message_field.cpp
+++ b/Telegram/SourceFiles/chat_helpers/message_field.cpp
@@ -15,6 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/event_filter.h"
 #include "boxes/abstract_box.h"
 #include "core/shortcuts.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "ui/wrap/vertical_layout.h"
 #include "ui/widgets/popup_menu.h"
 #include "ui/ui_utility.h"
@@ -25,7 +27,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "mainwindow.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
 #include "styles/style_history.h"
@@ -142,7 +143,7 @@ void EditLinkBox::prepare() {
 		st::markdownLinkFieldPadding);
 	text->setInstantReplaces(Ui::InstantReplaces::Default());
 	text->setInstantReplacesEnabled(
-		session->settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	Ui::Emoji::SuggestionsController::Init(
 		getDelegate()->outerContainer(),
 		text,
@@ -289,7 +290,7 @@ void InitMessageField(
 	field->customTab(true);
 	field->setInstantReplaces(Ui::InstantReplaces::Default());
 	field->setInstantReplacesEnabled(
-		controller->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	field->setMarkdownReplacesEnabled(rpl::single(true));
 	field->setEditLinkCallback(DefaultEditLinkCallback(controller, field));
 }
@@ -300,7 +301,7 @@ void InitSpellchecker(
 #ifndef TDESKTOP_DISABLE_SPELLCHECK
 	const auto s = Ui::CreateChild<Spellchecker::SpellingHighlighter>(
 		field.get(),
-		controller->session().settings().spellcheckerEnabledValue(),
+		Core::App().settings().spellcheckerEnabledValue(),
 		Spellchecker::SpellingHighlighter::CustomContextMenuItem{
 			tr::lng_settings_manage_dictionaries(tr::now),
 			[=] { Ui::show(Box<Ui::ManageDictionariesBox>(controller)); }
diff --git a/Telegram/SourceFiles/chat_helpers/spellchecker_common.cpp b/Telegram/SourceFiles/chat_helpers/spellchecker_common.cpp
index bc1d18804..1b01ee48f 100644
--- a/Telegram/SourceFiles/chat_helpers/spellchecker_common.cpp
+++ b/Telegram/SourceFiles/chat_helpers/spellchecker_common.cpp
@@ -15,11 +15,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_instance.h"
 #include "lang/lang_keys.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mainwidget.h"
 #include "spellcheck/platform/platform_spellcheck.h"
 #include "spellcheck/spellcheck_utils.h"
 #include "spellcheck/spellcheck_value.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 
 #include <QtGui/QGuiApplication>
 #include <QtGui/QInputMethod>
@@ -143,11 +144,11 @@ void DownloadDictionaryInBackground(
 		BackgroundLoaderChanged.fire(0);
 
 		if (DictionaryExists(id)) {
-			auto dicts = session->settings().dictionariesEnabled();
+			auto dicts = Core::App().settings().dictionariesEnabled();
 			if (!ranges::contains(dicts, id)) {
 				dicts.push_back(id);
-				session->settings().setDictionariesEnabled(std::move(dicts));
-				session->saveSettingsDelayed();
+				Core::App().settings().setDictionariesEnabled(std::move(dicts));
+				Core::App().saveSettingsDelayed();
 			}
 		}
 
@@ -312,18 +313,18 @@ bool WriteDefaultDictionary() {
 }
 
 rpl::producer<QString> ButtonManageDictsState(
-	not_null<Main::Session*> session) {
+		not_null<Main::Session*> session) {
 	if (Platform::Spellchecker::IsSystemSpellchecker()) {
 		return rpl::single(QString());
 	}
 	const auto computeString = [=] {
-		if (!session->settings().spellcheckerEnabled()) {
+		if (!Core::App().settings().spellcheckerEnabled()) {
 			return QString();
 		}
-		if (!session->settings().dictionariesEnabled().size()) {
+		if (!Core::App().settings().dictionariesEnabled().size()) {
 			return QString();
 		}
-		const auto dicts = session->settings().dictionariesEnabled();
+		const auto dicts = Core::App().settings().dictionariesEnabled();
 		const auto filtered = ranges::view::all(
 			dicts
 		) | ranges::views::filter(
@@ -341,9 +342,9 @@ rpl::producer<QString> ButtonManageDictsState(
 	) | rpl::then(
 		rpl::merge(
 			Spellchecker::SupportedScriptsChanged(),
-			session->settings().dictionariesEnabledChanges(
+			Core::App().settings().dictionariesEnabledChanges(
 			) | rpl::map(emptyValue),
-			session->settings().spellcheckerEnabledChanges(
+			Core::App().settings().spellcheckerEnabledChanges(
 			) | rpl::map(emptyValue)
 		) | rpl::map(computeString)
 	);
@@ -377,7 +378,7 @@ void Start(not_null<Main::Session*> session) {
 		{ &ph::lng_spellchecker_remove, tr::lng_spellchecker_remove() },
 		{ &ph::lng_spellchecker_ignore, tr::lng_spellchecker_ignore() },
 	} });
-	const auto settings = &session->settings();
+	const auto settings = &Core::App().settings();
 
 	const auto onEnabled = [=](auto enabled) {
 		Platform::Spellchecker::UpdateLanguages(
diff --git a/Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.cpp b/Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.cpp
index 4d501ce54..93cd1604c 100644
--- a/Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.cpp
+++ b/Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.cpp
@@ -13,10 +13,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/text/text_isolated_emoji.h"
 #include "ui/image/image.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "data/data_file_origin.h"
 #include "data/data_session.h"
 #include "data/data_document.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "base/call_delayed.h"
 #include "apiwrap.h"
 #include "app.h"
@@ -209,7 +210,7 @@ QSize LargeEmojiImage::Size() {
 
 EmojiPack::EmojiPack(not_null<Main::Session*> session)
 : _session(session)
-, _imageLoader(prepareSourceImages(), session->settings().largeEmoji())
+, _imageLoader(prepareSourceImages(), Core::App().settings().largeEmoji())
 , _clearTimer([=] { clearSourceImages(); }) {
 	refresh();
 
@@ -220,7 +221,7 @@ EmojiPack::EmojiPack(not_null<Main::Session*> session)
 		remove(item);
 	}, _lifetime);
 
-	_session->settings().largeEmojiChanges(
+	Core::App().settings().largeEmojiChanges(
 	) | rpl::start_with_next([=](bool large) {
 		if (large) {
 			_clearTimer.cancel();
@@ -392,7 +393,7 @@ void EmojiPack::refreshItems(
 auto EmojiPack::prepareSourceImages()
 -> std::shared_ptr<Ui::Emoji::UniversalImages> {
 	const auto &images = Ui::Emoji::SourceImages();
-	if (_session->settings().largeEmoji()) {
+	if (Core::App().settings().largeEmoji()) {
 		return images;
 	}
 	Ui::Emoji::ClearSourceImages(images);
diff --git a/Telegram/SourceFiles/core/application.cpp b/Telegram/SourceFiles/core/application.cpp
index 859684f0d..2a959d40d 100644
--- a/Telegram/SourceFiles/core/application.cpp
+++ b/Telegram/SourceFiles/core/application.cpp
@@ -36,7 +36,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwidget.h"
 #include "core/file_utilities.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_session.h"
 #include "media/view/media_view_overlay_widget.h"
 #include "mtproto/mtproto_dc_options.h"
@@ -56,7 +56,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/emoji_config.h"
 #include "ui/effects/animations.h"
 #include "storage/serialize_common.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "storage/storage_databases.h"
 #include "storage/localstorage.h"
 #include "window/window_session_controller.h"
@@ -98,7 +98,7 @@ Application::Application(not_null<Launcher*> launcher)
 , _animationsManager(std::make_unique<Ui::Animations::Manager>())
 , _fallbackProductionConfig(
 	std::make_unique<MTP::Config>(MTP::Environment::Production))
-, _accounts(std::make_unique<Main::Accounts>(cDataFile()))
+, _domain(std::make_unique<Main::Domain>(cDataFile()))
 , _langpack(std::make_unique<Lang::Instance>())
 , _langCloudManager(std::make_unique<Lang::CloudManager>(langpack()))
 , _emojiKeywords(std::make_unique<ChatHelpers::EmojiKeywords>())
@@ -116,14 +116,14 @@ Application::Application(not_null<Launcher*> launcher)
 		_shouldLockAt = 0;
 	}, _lifetime);
 
-	accounts().activeSessionChanges(
+	_domain->activeSessionChanges(
 	) | rpl::start_with_next([=](Main::Session *session) {
 		if (session && !UpdaterDisabled()) { // #TODO multi someSessionValue
 			UpdateChecker().setMtproto(session);
 		}
 	}, _lifetime);
 
-	accounts().activeValue(
+	_domain->activeValue(
 	) | rpl::filter(rpl::mappers::_1 != nullptr
 	) | rpl::take(1) | rpl::start_with_next([=] {
 		if (_window) {
@@ -147,7 +147,7 @@ Application::~Application() {
 	}
 
 	unlockTerms();
-	accounts().finish();
+	_domain->finish();
 
 	Local::finish();
 
@@ -220,7 +220,7 @@ void Application::run() {
 	QMimeDatabase().mimeTypeForName(qsl("text/plain"));
 
 	_window = std::make_unique<Window::Controller>();
-	accounts().activeChanges(
+	_domain->activeChanges(
 	) | rpl::start_with_next([=](not_null<Main::Account*> account) {
 		_window->showAccount(account);
 	}, _window->widget()->lifetime());
@@ -239,7 +239,7 @@ void Application::run() {
 
 	App::initMedia();
 
-	const auto state = accounts().start(QByteArray());
+	const auto state = _domain->start(QByteArray());
 	if (state == Storage::StartResult::IncorrectPasscode) {
 		Global::SetLocalPasscode(true);
 		Global::RefLocalPasscodeChanged().notify();
@@ -390,6 +390,10 @@ void Application::saveSettingsDelayed(crl::time delay) {
 	_saveSettingsTimer.callOnce(delay);
 }
 
+void Application::saveSettings() {
+	Local::writeSettings();
+}
+
 MTP::Config &Application::fallbackProductionConfig() const {
 	if (!_fallbackProductionConfig) {
 		_fallbackProductionConfig = std::make_unique<MTP::Config>(
@@ -451,14 +455,14 @@ void Application::badMtprotoConfigurationError() {
 
 void Application::startLocalStorage() {
 	Local::start();
-	_saveSettingsTimer.setCallback([=] { Local::writeSettings(); });
+	_saveSettingsTimer.setCallback([=] { saveSettings(); });
 }
 
 void Application::logout(Main::Account *account) {
 	if (account) {
 		account->logOut();
 	} else {
-		accounts().resetWithForgottenPasscode();
+		_domain->resetWithForgottenPasscode();
 	}
 }
 
@@ -549,11 +553,11 @@ void Application::writeInstallBetaVersionsSetting() {
 }
 
 Main::Account &Application::activeAccount() const {
-	return _accounts->active();
+	return _domain->active();
 }
 
 Main::Session *Application::maybeActiveSession() const {
-	return (_accounts->started() && activeAccount().sessionExists())
+	return (_domain->started() && activeAccount().sessionExists())
 		? &activeAccount().session()
 		: nullptr;
 }
@@ -571,23 +575,24 @@ bool Application::exportPreventsQuit() {
 }
 
 int Application::unreadBadge() const {
-	return accounts().unreadBadge();
+	return _domain->unreadBadge();
 }
 
 bool Application::unreadBadgeMuted() const {
-	return accounts().unreadBadgeMuted();
+	return _domain->unreadBadgeMuted();
 }
 
 rpl::producer<> Application::unreadBadgeChanges() const {
-	return accounts().unreadBadgeChanges();
+	return _domain->unreadBadgeChanges();
 }
 
 bool Application::offerLegacyLangPackSwitch() const {
-	return (accounts().list().size() == 1) && activeAccount().sessionExists();
+	return (_domain->accounts().size() == 1)
+		&& activeAccount().sessionExists();
 }
 
 bool Application::canApplyLangPackWithoutRestart() const {
-	for (const auto &[index, account] : accounts().list()) {
+	for (const auto &[index, account] : _domain->accounts()) {
 		if (account->sessionExists()) {
 			return false;
 		}
@@ -687,8 +692,7 @@ void Application::lockByTerms(const Window::TermsLock &data) {
 }
 
 bool Application::someSessionExists() const {
-	const auto &list = _accounts->list();
-	for (const auto &[index, account] : list) {
+	for (const auto &[index, account] : _domain->accounts()) {
 		if (account->sessionExists()) {
 			return true;
 		}
@@ -707,7 +711,7 @@ void Application::checkAutoLock() {
 
 	checkLocalTime();
 	const auto now = crl::now();
-	const auto shouldLockInMs = Global::AutoLock() * 1000LL;
+	const auto shouldLockInMs = _settings.autoLock() * 1000LL;
 	const auto checkTimeMs = now - lastNonIdleTime();
 	if (checkTimeMs >= shouldLockInMs || (_shouldLockAt > 0 && now > _shouldLockAt + kAutoLockTimeoutLateMs)) {
 		_shouldLockAt = 0;
@@ -828,8 +832,8 @@ void Application::notifyFileDialogShown(bool shown) {
 }
 
 QWidget *Application::getModalParent() {
-	return Platform::IsWayland()
-		? App::wnd()
+	return (Platform::IsWayland() && activeWindow())
+		? activeWindow()->widget()
 		: nullptr;
 }
 
@@ -918,7 +922,7 @@ void Application::quitDelayed() {
 void Application::startShortcuts() {
 	Shortcuts::Start();
 
-	_accounts->activeSessionChanges(
+	_domain->activeSessionChanges(
 	) | rpl::start_with_next([=](Main::Session *session) {
 		const auto support = session && session->supportMode();
 		Shortcuts::ToggleSupportShortcuts(support);
diff --git a/Telegram/SourceFiles/core/application.h b/Telegram/SourceFiles/core/application.h
index 9c34d9969..24da238bf 100644
--- a/Telegram/SourceFiles/core/application.h
+++ b/Telegram/SourceFiles/core/application.h
@@ -36,7 +36,7 @@ void quit();
 } // namespace App
 
 namespace Main {
-class Accounts;
+class Domain;
 class Account;
 class Session;
 } // namespace Main
@@ -136,6 +136,7 @@ public:
 		return _settings;
 	}
 	void saveSettingsDelayed(crl::time delay = kDefaultSaveDelay);
+	void saveSettings();
 
 	// Fallback config and proxy.
 	[[nodiscard]] MTP::Config &fallbackProductionConfig() const;
@@ -152,9 +153,9 @@ public:
 		return *_databases;
 	}
 
-	// Accounts component.
-	[[nodiscard]] Main::Accounts &accounts() const {
-		return *_accounts;
+	// Domain component.
+	[[nodiscard]] Main::Domain &domain() const {
+		return *_domain;
 	}
 	[[nodiscard]] Main::Account &activeAccount() const;
 	[[nodiscard]] bool someSessionExists() const;
@@ -282,7 +283,7 @@ private:
 	const std::unique_ptr<Storage::Databases> _databases;
 	const std::unique_ptr<Ui::Animations::Manager> _animationsManager;
 	mutable std::unique_ptr<MTP::Config> _fallbackProductionConfig;
-	const std::unique_ptr<Main::Accounts> _accounts;
+	const std::unique_ptr<Main::Domain> _domain;
 	std::unique_ptr<Window::Controller> _window;
 	std::unique_ptr<Media::View::OverlayWidget> _mediaView;
 	const std::unique_ptr<Lang::Instance> _langpack;
diff --git a/Telegram/SourceFiles/core/changelogs.cpp b/Telegram/SourceFiles/core/changelogs.cpp
index 995ff2bad..f0e93179d 100644
--- a/Telegram/SourceFiles/core/changelogs.cpp
+++ b/Telegram/SourceFiles/core/changelogs.cpp
@@ -9,9 +9,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "lang/lang_keys.h"
 #include "core/application.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_session.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "data/data_session.h"
 #include "mainwindow.h"
 #include "apiwrap.h"
@@ -82,7 +82,7 @@ Changelogs::Changelogs(not_null<Main::Session*> session, int oldVersion)
 
 std::unique_ptr<Changelogs> Changelogs::Create(
 		not_null<Main::Session*> session) {
-	auto &local = Core::App().accounts().local();
+	auto &local = Core::App().domain().local();
 	const auto oldVersion = local.oldVersion();
 	local.clearOldVersion();
 	return (oldVersion > 0 && oldVersion < AppVersion)
diff --git a/Telegram/SourceFiles/core/core_settings.cpp b/Telegram/SourceFiles/core/core_settings.cpp
index a9c577cf2..64c113fbe 100644
--- a/Telegram/SourceFiles/core/core_settings.cpp
+++ b/Telegram/SourceFiles/core/core_settings.cpp
@@ -7,45 +7,284 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "core/core_settings.h"
 
+#include "boxes/send_files_box.h"
+#include "ui/widgets/input_fields.h"
 #include "storage/serialize_common.h"
+#include "facades.h"
 
 namespace Core {
 
-Settings::Variables::Variables() {
+Settings::Settings()
+: _sendFilesWay(SendFilesWay::Album)
+, _sendSubmitWay(Ui::InputSubmitSettings::Enter) {
 }
 
 QByteArray Settings::serialize() const {
-	const auto themesAccentColors = _variables.themesAccentColors.serialize();
-	auto size = Serialize::bytearraySize(themesAccentColors);
+	const auto themesAccentColors = _themesAccentColors.serialize();
+	auto size = Serialize::bytearraySize(themesAccentColors)
+		+ sizeof(qint32) * 5
+		+ Serialize::stringSize(_downloadPath.current())
+		+ Serialize::bytearraySize(_downloadPathBookmark)
+		+ sizeof(qint32) * 12
+		+ Serialize::stringSize(_callOutputDeviceID)
+		+ Serialize::stringSize(_callInputDeviceID)
+		+ sizeof(qint32) * 3;
+	for (const auto &[key, value] : _soundOverrides) {
+		size += Serialize::stringSize(key) + Serialize::stringSize(value);
+	}
+	size += Serialize::bytearraySize(_videoPipGeometry);
 
 	auto result = QByteArray();
 	result.reserve(size);
 	{
 		QDataStream stream(&result, QIODevice::WriteOnly);
 		stream.setVersion(QDataStream::Qt_5_1);
-		stream << themesAccentColors;
+		stream
+			<< themesAccentColors
+			<< qint32(_adaptiveForWide ? 1 : 0)
+			<< qint32(_moderateModeEnabled ? 1 : 0)
+			<< qint32(qRound(_songVolume.current() * 1e6))
+			<< qint32(qRound(_videoVolume.current() * 1e6))
+			<< qint32(_askDownloadPath ? 1 : 0)
+			<< _downloadPath.current()
+			<< _downloadPathBookmark
+			<< qint32(_voiceMsgPlaybackDoubled ? 1 : 0)
+			<< qint32(_soundNotify ? 1 : 0)
+			<< qint32(_desktopNotify ? 1 : 0)
+			<< qint32(_flashBounceNotify ? 1 : 0)
+			<< static_cast<qint32>(_notifyView)
+			<< qint32(_nativeNotifications ? 1 : 0)
+			<< qint32(_notificationsCount)
+			<< static_cast<qint32>(_notificationsCorner)
+			<< qint32(_autoLock)
+			<< _callOutputDeviceID
+			<< _callInputDeviceID
+			<< qint32(_callOutputVolume)
+			<< qint32(_callInputVolume)
+			<< qint32(_callAudioDuckingEnabled ? 1 : 0)
+			<< qint32(_lastSeenWarningSeen ? 1 : 0)
+			<< qint32(_soundOverrides.size());
+		for (const auto &[key, value] : _soundOverrides) {
+			stream << key << value;
+		}
+		stream
+			<< qint32(_sendFilesWay)
+			<< qint32(_sendSubmitWay)
+			<< qint32(_includeMutedCounter ? 1 : 0)
+			<< qint32(_countUnreadMessages ? 1 : 0)
+			<< qint32(_exeLaunchWarning ? 1 : 0)
+			<< qint32(_notifyAboutPinned.current() ? 1 : 0)
+			<< qint32(_loopAnimatedStickers ? 1 : 0)
+			<< qint32(_largeEmoji.current() ? 1 : 0)
+			<< qint32(_replaceEmoji.current() ? 1 : 0)
+			<< qint32(_suggestEmoji ? 1 : 0)
+			<< qint32(_suggestStickersByEmoji ? 1 : 0)
+			<< qint32(_spellcheckerEnabled.current() ? 1 : 0)
+			<< qint32(SerializePlaybackSpeed(_videoPlaybackSpeed.current()))
+			<< _videoPipGeometry
+			<< qint32(_dictionariesEnabled.current().size());
+		for (const auto i : _dictionariesEnabled.current()) {
+			stream << quint64(i);
+		}
+		stream
+			<< qint32(_autoDownloadDictionaries.current() ? 1 : 0);
+
 	}
 	return result;
 }
 
-void Settings::constructFromSerialized(const QByteArray &serialized) {
+void Settings::addFromSerialized(const QByteArray &serialized) {
 	if (serialized.isEmpty()) {
 		return;
 	}
 
 	QDataStream stream(serialized);
 	stream.setVersion(QDataStream::Qt_5_1);
+
 	QByteArray themesAccentColors;
+	qint32 adaptiveForWide = _adaptiveForWide ? 1 : 0;
+	qint32 moderateModeEnabled = _moderateModeEnabled ? 1 : 0;
+	qint32 songVolume = qint32(qRound(_songVolume.current() * 1e6));
+	qint32 videoVolume = qint32(qRound(_videoVolume.current() * 1e6));
+	qint32 askDownloadPath = _askDownloadPath ? 1 : 0;
+	QString downloadPath = _downloadPath.current();
+	QByteArray downloadPathBookmark = _downloadPathBookmark;
+	qint32 voiceMsgPlaybackDoubled = _voiceMsgPlaybackDoubled ? 1 : 0;
+	qint32 soundNotify = _soundNotify ? 1 : 0;
+	qint32 desktopNotify = _desktopNotify ? 1 : 0;
+	qint32 flashBounceNotify = _flashBounceNotify ? 1 : 0;
+	qint32 notifyView = static_cast<qint32>(_notifyView);
+	qint32 nativeNotifications = _nativeNotifications ? 1 : 0;
+	qint32 notificationsCount = _notificationsCount;
+	qint32 notificationsCorner = static_cast<qint32>(_notificationsCorner);
+	qint32 autoLock = _autoLock;
+	QString callOutputDeviceID = _callOutputDeviceID;
+	QString callInputDeviceID = _callInputDeviceID;
+	qint32 callOutputVolume = _callOutputVolume;
+	qint32 callInputVolume = _callInputVolume;
+	qint32 callAudioDuckingEnabled = _callAudioDuckingEnabled ? 1 : 0;
+	qint32 lastSeenWarningSeen = _lastSeenWarningSeen ? 1 : 0;
+	qint32 soundOverridesCount = 0;
+	base::flat_map<QString, QString> soundOverrides;
+	qint32 sendFilesWay = static_cast<qint32>(_sendFilesWay);
+	qint32 sendSubmitWay = static_cast<qint32>(_sendSubmitWay);
+	qint32 includeMutedCounter = _includeMutedCounter ? 1 : 0;
+	qint32 countUnreadMessages = _countUnreadMessages ? 1 : 0;
+	qint32 exeLaunchWarning = _exeLaunchWarning ? 1 : 0;
+	qint32 notifyAboutPinned = _notifyAboutPinned.current() ? 1 : 0;
+	qint32 loopAnimatedStickers = _loopAnimatedStickers ? 1 : 0;
+	qint32 largeEmoji = _largeEmoji.current() ? 1 : 0;
+	qint32 replaceEmoji = _replaceEmoji.current() ? 1 : 0;
+	qint32 suggestEmoji = _suggestEmoji ? 1 : 0;
+	qint32 suggestStickersByEmoji = _suggestStickersByEmoji ? 1 : 0;
+	qint32 spellcheckerEnabled = _spellcheckerEnabled.current() ? 1 : 0;
+	qint32 videoPlaybackSpeed = Core::Settings::SerializePlaybackSpeed(_videoPlaybackSpeed.current());
+	QByteArray videoPipGeometry = _videoPipGeometry;
+	qint32 dictionariesEnabledCount = 0;
+	std::vector<int> dictionariesEnabled;
+	qint32 autoDownloadDictionaries = _autoDownloadDictionaries.current() ? 1 : 0;
 
 	stream >> themesAccentColors;
+	if (!stream.atEnd()) {
+		stream
+			>> adaptiveForWide
+			>> moderateModeEnabled
+			>> songVolume
+			>> videoVolume
+			>> askDownloadPath
+			>> downloadPath
+			>> downloadPathBookmark
+			>> voiceMsgPlaybackDoubled
+			>> soundNotify
+			>> desktopNotify
+			>> flashBounceNotify
+			>> notifyView
+			>> nativeNotifications
+			>> notificationsCount
+			>> notificationsCorner
+			>> autoLock
+			>> callOutputDeviceID
+			>> callInputDeviceID
+			>> callOutputVolume
+			>> callInputVolume
+			>> callAudioDuckingEnabled
+			>> lastSeenWarningSeen
+			>> soundOverridesCount;
+		if (stream.status() == QDataStream::Ok) {
+			for (auto i = 0; i != soundOverridesCount; ++i) {
+				QString key, value;
+				stream >> key >> value;
+				soundOverrides.emplace(key, value);
+			}
+		}
+		stream
+			>> sendFilesWay
+			>> sendSubmitWay
+			>> includeMutedCounter
+			>> countUnreadMessages
+			>> exeLaunchWarning
+			>> notifyAboutPinned
+			>> loopAnimatedStickers
+			>> largeEmoji
+			>> replaceEmoji
+			>> suggestEmoji
+			>> suggestStickersByEmoji
+			>> spellcheckerEnabled
+			>> videoPlaybackSpeed
+			>> videoPipGeometry
+			>> dictionariesEnabledCount;
+		if (stream.status() == QDataStream::Ok) {
+			for (auto i = 0; i != dictionariesEnabledCount; ++i) {
+				qint64 langId;
+				stream >> langId;
+				dictionariesEnabled.emplace_back(langId);
+			}
+		}
+		stream
+			>> autoDownloadDictionaries;
+	}
 	if (stream.status() != QDataStream::Ok) {
 		LOG(("App Error: "
 			"Bad data for Core::Settings::constructFromSerialized()"));
 		return;
-	}
-	if (!_variables.themesAccentColors.setFromSerialized(themesAccentColors)) {
+	} else if (!_themesAccentColors.setFromSerialized(themesAccentColors)) {
 		return;
 	}
+	_adaptiveForWide = (adaptiveForWide == 1);
+	_moderateModeEnabled = (moderateModeEnabled == 1);
+	_songVolume = std::clamp(songVolume / 1e6, 0., 1.);
+	_videoVolume = std::clamp(videoVolume / 1e6, 0., 1.);
+	_askDownloadPath = (askDownloadPath == 1);
+	_downloadPath = downloadPath;
+	_downloadPathBookmark = downloadPathBookmark;
+	_voiceMsgPlaybackDoubled = (voiceMsgPlaybackDoubled == 1);
+	_soundNotify = (soundNotify == 1);
+	_desktopNotify = (desktopNotify == 1);
+	_flashBounceNotify = (flashBounceNotify == 1);
+	const auto uncheckedNotifyView = static_cast<DBINotifyView>(notifyView);
+	switch (uncheckedNotifyView) {
+	case dbinvShowNothing:
+	case dbinvShowName:
+	case dbinvShowPreview: _notifyView = uncheckedNotifyView; break;
+	}
+	_nativeNotifications = (nativeNotifications == 1);
+	_notificationsCount = (notificationsCount > 0) ? notificationsCount : 3;
+	const auto uncheckedNotificationsCorner = static_cast<ScreenCorner>(notificationsCorner);
+	switch (uncheckedNotificationsCorner) {
+	case ScreenCorner::TopLeft:
+	case ScreenCorner::TopRight:
+	case ScreenCorner::BottomRight:
+	case ScreenCorner::BottomLeft: _notificationsCorner = uncheckedNotificationsCorner; break;
+	}
+	_includeMutedCounter = (includeMutedCounter == 1);
+	_countUnreadMessages = (countUnreadMessages == 1);
+	_notifyAboutPinned = (notifyAboutPinned == 1);
+	_autoLock = autoLock;
+	_callOutputDeviceID = callOutputDeviceID;
+	_callInputDeviceID = callInputDeviceID;
+	_callOutputVolume = callOutputVolume;
+	_callInputVolume = callInputVolume;
+	_callAudioDuckingEnabled = (callAudioDuckingEnabled == 1);
+	_lastSeenWarningSeen = (lastSeenWarningSeen == 1);
+	_soundOverrides = std::move(soundOverrides);
+	auto uncheckedSendFilesWay = static_cast<SendFilesWay>(sendFilesWay);
+	switch (uncheckedSendFilesWay) {
+	case SendFilesWay::Album:
+	case SendFilesWay::Photos:
+	case SendFilesWay::Files: _sendFilesWay = uncheckedSendFilesWay; break;
+	}
+	auto uncheckedSendSubmitWay = static_cast<Ui::InputSubmitSettings>(sendSubmitWay);
+	switch (uncheckedSendSubmitWay) {
+	case Ui::InputSubmitSettings::Enter:
+	case Ui::InputSubmitSettings::CtrlEnter: _sendSubmitWay = uncheckedSendSubmitWay; break;
+	}
+	_includeMutedCounter = (includeMutedCounter == 1);
+	_countUnreadMessages = (countUnreadMessages == 1);
+	_exeLaunchWarning = (exeLaunchWarning == 1);
+	_notifyAboutPinned = (notifyAboutPinned == 1);
+	_loopAnimatedStickers = (loopAnimatedStickers == 1);
+	_largeEmoji = (largeEmoji == 1);
+	_replaceEmoji = (replaceEmoji == 1);
+	_suggestEmoji = (suggestEmoji == 1);
+	_suggestStickersByEmoji = (suggestStickersByEmoji == 1);
+	_spellcheckerEnabled = (spellcheckerEnabled == 1);
+	_videoPlaybackSpeed = DeserializePlaybackSpeed(videoPlaybackSpeed);
+	_videoPipGeometry = (videoPipGeometry);
+	_dictionariesEnabled = std::move(dictionariesEnabled);
+	_autoDownloadDictionaries = (autoDownloadDictionaries == 1);
+}
+
+bool Settings::chatWide() const {
+	return _adaptiveForWide
+		&& (Global::AdaptiveChatLayout() == Adaptive::ChatLayout::Wide);
+}
+
+QString Settings::getSoundPath(const QString &key) const {
+	auto it = _soundOverrides.find(key);
+	if (it != _soundOverrides.end()) {
+		return it->second;
+	}
+	return qsl(":/sounds/") + key + qsl(".mp3");
 }
 
 } // namespace Core
diff --git a/Telegram/SourceFiles/core/core_settings.h b/Telegram/SourceFiles/core/core_settings.h
index a3bcbdd89..cb1953211 100644
--- a/Telegram/SourceFiles/core/core_settings.h
+++ b/Telegram/SourceFiles/core/core_settings.h
@@ -9,32 +9,408 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "window/themes/window_themes_embedded.h"
 
+enum class SendFilesWay;
+
+namespace Ui {
+enum class InputSubmitSettings;
+} // namespace Ui
+
 namespace Core {
 
 class Settings final {
 public:
-	void moveFrom(Settings &&other) {
-		_variables = std::move(other._variables);
-	}
-	[[nodiscard]] QByteArray serialize() const;
-	void constructFromSerialized(const QByteArray &serialized);
+	enum class ScreenCorner {
+		TopLeft = 0,
+		TopRight = 1,
+		BottomRight = 2,
+		BottomLeft = 3,
+	};
 
-	void setThemesAccentColors(Window::Theme::AccentColors &&colors) {
-		_variables.themesAccentColors = std::move(colors);
+	static constexpr auto kDefaultVolume = 0.9;
+
+	Settings();
+
+	[[nodiscard]] static bool IsLeftCorner(ScreenCorner corner) {
+		return (corner == ScreenCorner::TopLeft)
+			|| (corner == ScreenCorner::BottomLeft);
+	}
+	[[nodiscard]] static bool IsTopCorner(ScreenCorner corner) {
+		return (corner == ScreenCorner::TopLeft)
+			|| (corner == ScreenCorner::TopRight);
+	}
+
+	[[nodiscard]] QByteArray serialize() const;
+	void addFromSerialized(const QByteArray &serialized);
+
+	[[nodiscard]] bool chatWide() const;
+	[[nodiscard]] bool adaptiveForWide() const {
+		return _adaptiveForWide;
+	}
+	void setAdaptiveForWide(bool value) {
+		_adaptiveForWide = value;
+	}
+	[[nodiscard]] bool moderateModeEnabled() const {
+		return _moderateModeEnabled;
+	}
+	void setModerateModeEnabled(bool value) {
+		_moderateModeEnabled = value;
+	}
+	[[nodiscard]] float64 songVolume() const {
+		return _songVolume.current();
+	}
+	[[nodiscard]] rpl::producer<float64> songVolumeChanges() const {
+		return _songVolume.changes();
+	}
+	void setSongVolume(float64 value) {
+		_songVolume = value;
+	}
+	[[nodiscard]] float64 videoVolume() const {
+		return _videoVolume.current();
+	}
+	[[nodiscard]] rpl::producer<float64> videoVolumeChanges() const {
+		return _videoVolume.changes();
+	}
+	void setVideoVolume(float64 value) {
+		_videoVolume = value;
+	}
+	[[nodiscard]] bool askDownloadPath() const {
+		return _askDownloadPath;
+	}
+	void setAskDownloadPath(bool value) {
+		_askDownloadPath = value;
+	}
+	[[nodiscard]] QString downloadPath() const {
+		return _downloadPath.current();
+	}
+	[[nodiscard]] rpl::producer<QString> downloadPathValue() const {
+		return _downloadPath.value();
+	}
+	void setDownloadPath(const QString &value) {
+		_downloadPath = value;
+	}
+	[[nodiscard]] QByteArray downloadPathBookmark() const {
+		return _downloadPathBookmark;
+	}
+	void setDownloadPathBookmark(const QByteArray &value) {
+		_downloadPathBookmark = value;
+	}
+	[[nodiscard]] bool voiceMsgPlaybackDoubled() const {
+		return _voiceMsgPlaybackDoubled;
+	}
+	void setVoiceMsgPlaybackDoubled(bool value) {
+		_voiceMsgPlaybackDoubled = value;
+	}
+	[[nodiscard]] bool soundNotify() const {
+		return _soundNotify;
+	}
+	void setSoundNotify(bool value) {
+		_soundNotify = value;
+	}
+	[[nodiscard]] bool desktopNotify() const {
+		return _desktopNotify;
+	}
+	void setDesktopNotify(bool value) {
+		_desktopNotify = value;
+	}
+	[[nodiscard]] bool flashBounceNotify() const {
+		return _flashBounceNotify;
+	}
+	void setFlashBounceNotify(bool value) {
+		_flashBounceNotify = value;
+	}
+	[[nodiscard]] DBINotifyView notifyView() const {
+		return _notifyView;
+	}
+	void setNotifyView(DBINotifyView value) {
+		_notifyView = value;
+	}
+	[[nodiscard]] bool nativeNotifications() const {
+		return _nativeNotifications;
+	}
+	void setNativeNotifications(bool value) {
+		_nativeNotifications = value;
+	}
+	[[nodiscard]] int notificationsCount() const {
+		return _notificationsCount;
+	}
+	void setNotificationsCount(int value) {
+		_notificationsCount = value;
+	}
+	[[nodiscard]] ScreenCorner notificationsCorner() const {
+		return _notificationsCorner;
+	}
+	void setNotificationsCorner(ScreenCorner corner) {
+		_notificationsCorner = corner;
+	}
+	[[nodiscard]] bool includeMutedCounter() const {
+		return _includeMutedCounter;
+	}
+	void setIncludeMutedCounter(bool value) {
+		_includeMutedCounter = value;
+	}
+	[[nodiscard]] bool countUnreadMessages() const {
+		return _countUnreadMessages;
+	}
+	void setCountUnreadMessages(bool value) {
+		_countUnreadMessages = value;
+	}
+	void setNotifyAboutPinned(bool notify) {
+		_notifyAboutPinned = notify;
+	}
+	[[nodiscard]] bool notifyAboutPinned() const {
+		return _notifyAboutPinned.current();
+	}
+	[[nodiscard]] rpl::producer<bool> notifyAboutPinnedChanges() const {
+		return _notifyAboutPinned.changes();
+	}
+	[[nodiscard]] int autoLock() const {
+		return _autoLock;
+	}
+	void setAutoLock(int value) {
+		_autoLock = value;
+	}
+	[[nodiscard]] QString callOutputDeviceID() const {
+		return _callOutputDeviceID;
+	}
+	void setCallOutputDeviceID(const QString &value) {
+		_callOutputDeviceID = value;
+	}
+	[[nodiscard]] QString callInputDeviceID() const {
+		return _callInputDeviceID;
+	}
+	void setCallInputDeviceID(const QString &value) {
+		_callInputDeviceID = value;
+	}
+	[[nodiscard]] int callOutputVolume() const {
+		return _callOutputVolume;
+	}
+	void setCallOutputVolume(int value) {
+		_callOutputVolume = value;
+	}
+	[[nodiscard]] int callInputVolume() const {
+		return _callInputVolume;
+	}
+	void setCallInputVolume(int value) {
+		_callInputVolume = value;
+	}
+	[[nodiscard]] bool callAudioDuckingEnabled() const {
+		return _callAudioDuckingEnabled;
+	}
+	void setCallAudioDuckingEnabled(bool value) {
+		_callAudioDuckingEnabled = value;
 	}
 	[[nodiscard]] Window::Theme::AccentColors &themesAccentColors() {
-		return _variables.themesAccentColors;
+		return _themesAccentColors;
+	}
+	void setThemesAccentColors(Window::Theme::AccentColors &&colors) {
+		_themesAccentColors = std::move(colors);
+	}
+	void setLastSeenWarningSeen(bool lastSeenWarningSeen) {
+		_lastSeenWarningSeen = lastSeenWarningSeen;
+	}
+	[[nodiscard]] bool lastSeenWarningSeen() const {
+		return _lastSeenWarningSeen;
+	}
+	void setSendFilesWay(SendFilesWay way) {
+		_sendFilesWay = way;
+	}
+	[[nodiscard]] SendFilesWay sendFilesWay() const {
+		return _sendFilesWay;
+	}
+	void setSendSubmitWay(Ui::InputSubmitSettings value) {
+		_sendSubmitWay = value;
+	}
+	[[nodiscard]] Ui::InputSubmitSettings sendSubmitWay() const {
+		return _sendSubmitWay;
+	}
+	void setSoundOverride(const QString &key, const QString &path) {
+		_soundOverrides.emplace(key, path);
+	}
+	void clearSoundOverrides() {
+		_soundOverrides.clear();
+	}
+	[[nodiscard]] QString getSoundPath(const QString &key) const;
+
+	[[nodiscard]] bool exeLaunchWarning() const {
+		return _exeLaunchWarning;
+	}
+	void setExeLaunchWarning(bool warning) {
+		_exeLaunchWarning = warning;
+	}
+	[[nodiscard]] bool loopAnimatedStickers() const {
+		return _loopAnimatedStickers;
+	}
+	void setLoopAnimatedStickers(bool value) {
+		_loopAnimatedStickers = value;
+	}
+	void setLargeEmoji(bool value) {
+		_largeEmoji = value;
+	}
+	[[nodiscard]] bool largeEmoji() const {
+		return _largeEmoji.current();
+	}
+	[[nodiscard]] rpl::producer<bool> largeEmojiValue() const {
+		return _largeEmoji.value();
+	}
+	[[nodiscard]] rpl::producer<bool> largeEmojiChanges() const {
+		return _largeEmoji.changes();
+	}
+	void setReplaceEmoji(bool value) {
+		_replaceEmoji = value;
+	}
+	[[nodiscard]] bool replaceEmoji() const {
+		return _replaceEmoji.current();
+	}
+	[[nodiscard]] rpl::producer<bool> replaceEmojiValue() const {
+		return _replaceEmoji.value();
+	}
+	[[nodiscard]] rpl::producer<bool> replaceEmojiChanges() const {
+		return _replaceEmoji.changes();
+	}
+	[[nodiscard]] bool suggestEmoji() const {
+		return _suggestEmoji;
+	}
+	void setSuggestEmoji(bool value) {
+		_suggestEmoji = value;
+	}
+	[[nodiscard]] bool suggestStickersByEmoji() const {
+		return _suggestStickersByEmoji;
+	}
+	void setSuggestStickersByEmoji(bool value) {
+		_suggestStickersByEmoji = value;
+	}
+
+	void setSpellcheckerEnabled(bool value) {
+		_spellcheckerEnabled = value;
+	}
+	bool spellcheckerEnabled() const {
+		return _spellcheckerEnabled.current();
+	}
+	rpl::producer<bool> spellcheckerEnabledValue() const {
+		return _spellcheckerEnabled.value();
+	}
+	rpl::producer<bool> spellcheckerEnabledChanges() const {
+		return _spellcheckerEnabled.changes();
+	}
+
+	void setDictionariesEnabled(std::vector<int> dictionaries) {
+		_dictionariesEnabled = std::move(dictionaries);
+	}
+
+	std::vector<int> dictionariesEnabled() const {
+		return _dictionariesEnabled.current();
+	}
+
+	rpl::producer<std::vector<int>> dictionariesEnabledChanges() const {
+		return _dictionariesEnabled.changes();
+	}
+
+	void setAutoDownloadDictionaries(bool value) {
+		_autoDownloadDictionaries = value;
+	}
+	bool autoDownloadDictionaries() const {
+		return _autoDownloadDictionaries.current();
+	}
+	rpl::producer<bool> autoDownloadDictionariesValue() const {
+		return _autoDownloadDictionaries.value();
+	}
+	rpl::producer<bool> autoDownloadDictionariesChanges() const {
+		return _autoDownloadDictionaries.changes();
+	}
+
+	[[nodiscard]] float64 videoPlaybackSpeed() const {
+		return _videoPlaybackSpeed.current();
+	}
+	void setVideoPlaybackSpeed(float64 speed) {
+		_videoPlaybackSpeed = speed;
+	}
+	[[nodiscard]] QByteArray videoPipGeometry() const {
+		return _videoPipGeometry;
+	}
+	void setVideoPipGeometry(QByteArray geometry) {
+		_videoPipGeometry = geometry;
+	}
+
+	[[nodiscard]] float64 rememberedSongVolume() const {
+		return _rememberedSongVolume;
+	}
+	void setRememberedSongVolume(float64 value) {
+		_rememberedSongVolume = value;
+	}
+	[[nodiscard]] bool rememberedSoundNotifyFromTray() const {
+		return _rememberedSoundNotifyFromTray;
+	}
+	void setRememberedSoundNotifyFromTray(bool value) {
+		_rememberedSoundNotifyFromTray = value;
+	}
+	[[nodiscard]] bool rememberedFlashBounceNotifyFromTray() const {
+		return _rememberedFlashBounceNotifyFromTray;
+	}
+	void setRememberedFlashBounceNotifyFromTray(bool value) {
+		_rememberedFlashBounceNotifyFromTray = value;
+	}
+
+	[[nodiscard]] static qint32 SerializePlaybackSpeed(float64 speed) {
+		return int(std::round(std::clamp(speed * 4., 2., 8.))) - 2;
+	}
+	[[nodiscard]] static float64 DeserializePlaybackSpeed(qint32 speed) {
+		return (std::clamp(speed, 0, 6) + 2) / 4.;
 	}
 
 private:
-	struct Variables {
-		Variables();
+	bool _adaptiveForWide = true;
+	bool _moderateModeEnabled = false;
 
-		Window::Theme::AccentColors themesAccentColors;
-	};
+	rpl::variable<float64> _songVolume = kDefaultVolume;
+	rpl::variable<float64> _videoVolume = kDefaultVolume;
 
-	Variables _variables;
+	bool _askDownloadPath = false;
+	rpl::variable<QString> _downloadPath;
+	QByteArray _downloadPathBookmark;
+
+	bool _voiceMsgPlaybackDoubled = false;
+	bool _soundNotify = true;
+	bool _desktopNotify = true;
+	bool _flashBounceNotify = true;
+	DBINotifyView _notifyView = dbinvShowPreview;
+	bool _nativeNotifications = false;
+	int _notificationsCount = 3;
+	ScreenCorner _notificationsCorner = ScreenCorner::BottomRight;
+	bool _includeMutedCounter = true;
+	bool _countUnreadMessages = true;
+	rpl::variable<bool> _notifyAboutPinned = true;
+	int _autoLock = 3600;
+
+	QString _callOutputDeviceID = u"default"_q;
+	QString _callInputDeviceID = u"default"_q;
+	int _callOutputVolume = 100;
+	int _callInputVolume = 100;
+	bool _callAudioDuckingEnabled = true;
+
+	Window::Theme::AccentColors _themesAccentColors;
+
+	bool _lastSeenWarningSeen = false;
+	SendFilesWay _sendFilesWay;
+	Ui::InputSubmitSettings _sendSubmitWay;
+	base::flat_map<QString, QString> _soundOverrides;
+
+	bool _exeLaunchWarning = true;
+	bool _loopAnimatedStickers = true;
+	rpl::variable<bool> _largeEmoji = true;
+	rpl::variable<bool> _replaceEmoji = true;
+	bool _suggestEmoji = true;
+	bool _suggestStickersByEmoji = true;
+	rpl::variable<bool> _spellcheckerEnabled = true;
+	rpl::variable<float64> _videoPlaybackSpeed = 1.;
+	QByteArray _videoPipGeometry;
+	rpl::variable<std::vector<int>> _dictionariesEnabled;
+	rpl::variable<bool> _autoDownloadDictionaries = true;
+
+	float64 _rememberedSongVolume = kDefaultVolume;
+	bool _rememberedSoundNotifyFromTray = false;
+	bool _rememberedFlashBounceNotifyFromTray = false;
 
 };
 
 } // namespace Core
+
diff --git a/Telegram/SourceFiles/core/launcher.cpp b/Telegram/SourceFiles/core/launcher.cpp
index 85ef0654e..006639ec0 100644
--- a/Telegram/SourceFiles/core/launcher.cpp
+++ b/Telegram/SourceFiles/core/launcher.cpp
@@ -16,7 +16,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/update_checker.h"
 #include "core/sandbox.h"
 #include "base/concurrent_timer.h"
-#include "facades.h"
 
 namespace Core {
 namespace {
diff --git a/Telegram/SourceFiles/core/local_url_handlers.cpp b/Telegram/SourceFiles/core/local_url_handlers.cpp
index 29a59d6ca..2b5e5c494 100644
--- a/Telegram/SourceFiles/core/local_url_handlers.cpp
+++ b/Telegram/SourceFiles/core/local_url_handlers.cpp
@@ -59,9 +59,12 @@ bool JoinGroupByHash(
 			}));
 		}, [=](const MTPDchatInviteAlready &data) {
 			if (const auto chat = session->data().processChat(data.vchat())) {
-				App::wnd()->sessionController()->showPeerHistory(
-					chat,
-					Window::SectionShow::Way::Forward);
+				for (const auto controller : session->windows()) {
+					controller->showPeerHistory(
+						chat,
+						Window::SectionShow::Way::Forward);
+					break;
+				}
 			}
 		});
 	}, [=](const RPCError &error) {
diff --git a/Telegram/SourceFiles/core/update_checker.cpp b/Telegram/SourceFiles/core/update_checker.cpp
index 5df6c06c4..9f908c4ce 100644
--- a/Telegram/SourceFiles/core/update_checker.cpp
+++ b/Telegram/SourceFiles/core/update_checker.cpp
@@ -17,7 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "main/main_account.h"
 #include "main/main_session.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "info/info_memento.h"
 #include "info/settings/info_settings_widget.h"
 #include "window/window_session_controller.h"
@@ -1392,7 +1392,7 @@ Updater::~Updater() {
 
 UpdateChecker::UpdateChecker()
 : _updater(GetUpdaterInstance()) {
-	if (IsAppLaunched() && Core::App().accounts().started()) {
+	if (IsAppLaunched() && Core::App().domain().started()) {
 		const auto &account = Core::App().activeAccount();
 		if (account.sessionExists()) {
 			_updater->setMtproto(&account.session());
diff --git a/Telegram/SourceFiles/data/data_document.cpp b/Telegram/SourceFiles/data/data_document.cpp
index b493efd98..b29e898ae 100644
--- a/Telegram/SourceFiles/data/data_document.cpp
+++ b/Telegram/SourceFiles/data/data_document.cpp
@@ -14,7 +14,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "inline_bots/inline_bot_layout_item.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mainwidget.h"
 #include "core/file_utilities.h"
 #include "core/mime_type.h"
@@ -41,7 +40,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "core/application.h"
 #include "lottie/lottie_animation.h"
-#include "facades.h"
 #include "app.h"
 
 namespace {
@@ -74,7 +72,7 @@ void LaunchWithWarning(
 	const auto warn = [&] {
 		if (!Data::IsExecutableName(name)) {
 			return false;
-		} else if (!session->settings().exeLaunchWarning()) {
+		} else if (!Core::App().settings().exeLaunchWarning()) {
 			return false;
 		} else if (item && item->history()->peer->isVerified()) {
 			return false;
@@ -86,13 +84,13 @@ void LaunchWithWarning(
 		return;
 	}
 	const auto extension = '.' + Data::FileExtension(name);
-	const auto callback = crl::guard(session, [=](bool checked) {
+	const auto callback = [=](bool checked) {
 		if (checked) {
-			session->settings().setExeLaunchWarning(false);
-			session->saveSettingsDelayed();
+			Core::App().settings().setExeLaunchWarning(false);
+			Core::App().saveSettingsDelayed();
 		}
 		File::Launch(name);
-	});
+	};
 	Ui::show(Box<ConfirmDontWarnBox>(
 		tr::lng_launch_exe_warning(
 			lt_extension,
@@ -133,7 +131,7 @@ QString FileNameUnsafe(
 		bool savingAs,
 		const QDir &dir) {
 	name = base::FileNameFromUserString(name);
-	if (Global::AskDownloadPath() || savingAs) {
+	if (Core::App().settings().askDownloadPath() || savingAs) {
 		if (!name.isEmpty() && name.at(0) == QChar::fromLatin1('.')) {
 			name = filedialogDefaultName(prefix, name);
 		} else if (dir.path() != qsl(".")) {
@@ -177,14 +175,16 @@ QString FileNameUnsafe(
 		return filedialogGetSaveFile(name, title, fil, name) ? name : QString();
 	}
 
-	QString path;
-	if (Global::DownloadPath().isEmpty()) {
-		path = File::DefaultDownloadPath(session);
-	} else if (Global::DownloadPath() == qsl("tmp")) {
-		path = cTempDir();
-	} else {
-		path = Global::DownloadPath();
-	}
+	auto path = [&] {
+		const auto path = Core::App().settings().downloadPath();
+		if (path.isEmpty()) {
+			return File::DefaultDownloadPath(session);
+		} else if (path == qsl("tmp")) {
+			return cTempDir();
+		} else {
+			return path;
+		}
+	}();
 	if (name.isEmpty()) name = qsl(".unknown");
 	if (name.at(0) == QChar::fromLatin1('.')) {
 		if (!QDir().exists(path)) QDir().mkpath(path);
@@ -1056,10 +1056,9 @@ void DocumentData::handleLoaderUpdates() {
 			// Sometimes FILE_REFERENCE_EXPIRED could not be handled.
 			//
 			//const auto openSettings = [=] {
-			//	Global::SetDownloadPath(QString());
-			//	Global::SetDownloadPathBookmark(QByteArray());
+			//	Core::App().settings().etDownloadPathBookmark(QByteArray());
+			//	Core::App().settings().setDownloadPath(QString());
 			//	Ui::show(Box<DownloadPathBox>());
-			//	Global::RefDownloadPathChanged().notify();
 			//};
 			//Ui::show(Box<ConfirmBox>(
 			//	tr::lng_download_path_failed(tr::now),
@@ -1175,7 +1174,8 @@ bool DocumentData::saveFromData() {
 
 bool DocumentData::saveFromDataSilent() {
 	return !filepath(true).isEmpty()
-		|| (!Global::AskDownloadPath() && saveFromDataChecked());
+		|| (!Core::App().settings().askDownloadPath()
+			&& saveFromDataChecked());
 }
 
 bool DocumentData::saveFromDataChecked() {
diff --git a/Telegram/SourceFiles/data/data_document_media.cpp b/Telegram/SourceFiles/data/data_document_media.cpp
index 5d51d2d57..d8c222cba 100644
--- a/Telegram/SourceFiles/data/data_document_media.cpp
+++ b/Telegram/SourceFiles/data/data_document_media.cpp
@@ -19,9 +19,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "history/history.h"
 #include "window/themes/window_theme_preview.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "storage/file_download.h"
 #include "ui/image/image.h"
-#include "facades.h"
 #include "app.h"
 
 #include <QtCore/QBuffer>
@@ -259,7 +260,7 @@ void DocumentMedia::automaticLoad(
 		return;
 	}
 	const auto toCache = _owner->saveToCache();
-	if (!toCache && Global::AskDownloadPath()) {
+	if (!toCache && Core::App().settings().askDownloadPath()) {
 		// We need a filename, but we're supposed to ask user for it.
 		// No automatic download in this case.
 		return;
diff --git a/Telegram/SourceFiles/data/data_folder.cpp b/Telegram/SourceFiles/data/data_folder.cpp
index cf65e3cf5..ef9e83a17 100644
--- a/Telegram/SourceFiles/data/data_folder.cpp
+++ b/Telegram/SourceFiles/data/data_folder.cpp
@@ -20,7 +20,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_account.h"
 //#include "storage/storage_feed_messages.h" // #feed
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mtproto/mtproto_config.h"
 #include "apiwrap.h"
 #include "mainwidget.h"
@@ -372,7 +371,7 @@ bool Folder::shouldBeInChatList() const {
 int Folder::chatListUnreadCount() const {
 	const auto state = chatListUnreadState();
 	return state.marks
-		+ (session().settings().countUnreadMessages()
+		+ (Core::App().settings().countUnreadMessages()
 			? state.messages
 			: state.chats);
 }
diff --git a/Telegram/SourceFiles/data/data_session.cpp b/Telegram/SourceFiles/data/data_session.cpp
index 00cdd0773..cbc890b0d 100644
--- a/Telegram/SourceFiles/data/data_session.cpp
+++ b/Telegram/SourceFiles/data/data_session.cpp
@@ -8,7 +8,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_session.h"
 
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "apiwrap.h"
 #include "mainwidget.h"
 #include "api/api_text_entities.h"
@@ -2067,7 +2066,7 @@ int Session::unreadBadgeIgnoreOne(const Dialogs::Key &key) const {
 }
 
 bool Session::unreadBadgeMutedIgnoreOne(const Dialogs::Key &key) const {
-	if (!_session->settings().includeMutedCounter()) {
+	if (!Core::App().settings().includeMutedCounter()) {
 		return false;
 	}
 	const auto remove = (key && key.entry()->inChatList())
@@ -2078,7 +2077,7 @@ bool Session::unreadBadgeMutedIgnoreOne(const Dialogs::Key &key) const {
 
 int Session::unreadOnlyMutedBadge() const {
 	const auto state = _chatsList.unreadState();
-	return _session->settings().countUnreadMessages()
+	return Core::App().settings().countUnreadMessages()
 		? state.messagesMuted
 		: state.chatsMuted;
 }
@@ -2092,20 +2091,20 @@ void Session::notifyUnreadBadgeChanged() {
 }
 
 int Session::computeUnreadBadge(const Dialogs::UnreadState &state) const {
-	const auto all = _session->settings().includeMutedCounter();
+	const auto all = Core::App().settings().includeMutedCounter();
 	return std::max(state.marks - (all ? 0 : state.marksMuted), 0)
-		+ (_session->settings().countUnreadMessages()
+		+ (Core::App().settings().countUnreadMessages()
 			? std::max(state.messages - (all ? 0 : state.messagesMuted), 0)
 			: std::max(state.chats - (all ? 0 : state.chatsMuted), 0));
 }
 
 bool Session::computeUnreadBadgeMuted(
 		const Dialogs::UnreadState &state) const {
-	if (!_session->settings().includeMutedCounter()) {
+	if (!Core::App().settings().includeMutedCounter()) {
 		return false;
 	}
 	return (state.marksMuted >= state.marks)
-		&& (_session->settings().countUnreadMessages()
+		&& (Core::App().settings().countUnreadMessages()
 			? (state.messagesMuted >= state.messages)
 			: (state.chatsMuted >= state.chats));
 }
diff --git a/Telegram/SourceFiles/data/data_user.cpp b/Telegram/SourceFiles/data/data_user.cpp
index c3c6d1f6d..682a457c3 100644
--- a/Telegram/SourceFiles/data/data_user.cpp
+++ b/Telegram/SourceFiles/data/data_user.cpp
@@ -14,7 +14,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/text_options.h"
 #include "apiwrap.h"
 #include "lang/lang_keys.h"
-#include "facades.h"
 
 namespace {
 
diff --git a/Telegram/SourceFiles/data/stickers/data_stickers.cpp b/Telegram/SourceFiles/data/stickers/data_stickers.cpp
index af46d8809..08ef4297c 100644
--- a/Telegram/SourceFiles/data/stickers/data_stickers.cpp
+++ b/Telegram/SourceFiles/data/stickers/data_stickers.cpp
@@ -18,8 +18,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item_components.h"
 #include "apiwrap.h"
 #include "storage/storage_account.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mtproto/mtproto_config.h"
 #include "ui/toast/toast.h"
 #include "ui/image/image_location_factory.h"
@@ -1051,7 +1052,7 @@ std::vector<not_null<DocumentData*>> Stickers::getListByEmoji(
 		session().api().requestStickerSets();
 	}
 
-	if (session().settings().suggestStickersByEmoji()) {
+	if (Core::App().settings().suggestStickersByEmoji()) {
 		const auto others = session().api().stickersByEmoji(original);
 		if (!others) {
 			return {};
diff --git a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
index 966be7e0e..61d486522 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
@@ -49,7 +49,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/unread_badge.h"
 #include "boxes/filters/edit_filter_box.h"
 #include "api/api_chat_filters.h"
-#include "facades.h"
 #include "styles/style_dialogs.h"
 #include "styles/style_chat_helpers.h"
 #include "styles/style_window.h"
diff --git a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
index 273f47d6d..6d294c09e 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
@@ -284,7 +284,7 @@ Widget::Widget(
 		updateControlsGeometry();
 	}, lifetime());
 	_mainMenuToggle->setClickedCallback([=] { showMainMenu(); });
-	_searchForNarrowFilters->setClickedCallback([=] { Ui::showChatsList(); });
+	_searchForNarrowFilters->setClickedCallback([=] { Ui::showChatsList(&session()); });
 
 	_chooseByDragTimer.setSingleShot(true);
 	connect(&_chooseByDragTimer, SIGNAL(timeout()), this, SLOT(onChooseByDrag()));
diff --git a/Telegram/SourceFiles/facades.cpp b/Telegram/SourceFiles/facades.cpp
index dd878c954..284635127 100644
--- a/Telegram/SourceFiles/facades.cpp
+++ b/Telegram/SourceFiles/facades.cpp
@@ -211,29 +211,28 @@ void showSettings() {
 
 namespace Ui {
 
-void showPeerProfile(const PeerId &peer) {
-	if (const auto window = App::wnd()) {
+void showPeerProfile(not_null<PeerData*> peer) {
+	if (const auto window = App::wnd()) { // multi good
 		if (const auto controller = window->sessionController()) {
-			controller->showPeerInfo(peer);
+			if (&controller->session() == &peer->session()) {
+				controller->showPeerInfo(peer);
+			}
 		}
 	}
 }
-void showPeerProfile(const PeerData *peer) {
-	showPeerProfile(peer->id);
-}
 
 void showPeerProfile(not_null<const History*> history) {
-	showPeerProfile(history->peer->id);
+	showPeerProfile(history->peer);
 }
 
-void showPeerHistory(
-		const PeerId &peer,
-		MsgId msgId) {
+void showChatsList(not_null<Main::Session*> session) {
 	if (const auto m = App::main()) { // multi good
-		m->ui_showPeerHistory(
-			peer,
-			Window::SectionShow::Way::ClearStack,
-			msgId);
+		if (&m->session() == session) {
+			m->ui_showPeerHistory(
+				0,
+				Window::SectionShow::Way::ClearStack,
+				0);
+		}
 	}
 }
 
@@ -332,37 +331,11 @@ namespace Global {
 namespace internal {
 
 struct Data {
+	bool ScreenIsLocked = false;
 	Adaptive::WindowLayout AdaptiveWindowLayout = Adaptive::WindowLayout::Normal;
 	Adaptive::ChatLayout AdaptiveChatLayout = Adaptive::ChatLayout::Normal;
-	bool AdaptiveForWide = true;
 	base::Observable<void> AdaptiveChanged;
 
-	bool DialogsFiltersEnabled = false;
-	bool ModerateModeEnabled = false;
-
-	bool ScreenIsLocked = false;
-
-	float64 RememberedSongVolume = kDefaultVolume;
-	float64 SongVolume = kDefaultVolume;
-	base::Observable<void> SongVolumeChanged;
-	float64 VideoVolume = kDefaultVolume;
-	base::Observable<void> VideoVolumeChanged;
-
-	bool AskDownloadPath = false;
-	QString DownloadPath;
-	QByteArray DownloadPathBookmark;
-	base::Observable<void> DownloadPathChanged;
-
-	bool VoiceMsgPlaybackDoubled = false;
-	bool SoundNotify = true;
-	bool DesktopNotify = true;
-	bool FlashBounceNotify = true;
-	bool RestoreSoundNotifyFromTray = false;
-	bool RestoreFlashBounceNotifyFromTray = false;
-	DBINotifyView NotifyView = dbinvShowPreview;
-	bool NativeNotifications = false;
-	int NotificationsCount = 3;
-	Notify::ScreenCorner NotificationsCorner = Notify::ScreenCorner::BottomRight;
 	bool NotificationsDemoIsShown = false;
 
 	bool TryIPv6 = !Platform::IsWindows();
@@ -372,19 +345,12 @@ struct Data {
 	bool UseProxyForCalls = false;
 	base::Observable<void> ConnectionTypeChanged;
 
-	int AutoLock = 3600;
 	bool LocalPasscode = false;
 	base::Observable<void> LocalPasscodeChanged;
 
 	base::Variable<DBIWorkMode> WorkMode = { dbiwmWindowAndTray };
 
 	base::Observable<void> PeerChooseCancel;
-
-	QString CallOutputDeviceID = qsl("default");
-	QString CallInputDeviceID = qsl("default");
-	int CallOutputVolume = 100;
-	int CallInputVolume = 100;
-	bool CallAudioDuckingEnabled = true;
 };
 
 } // namespace internal
@@ -407,37 +373,11 @@ void finish() {
 	GlobalData = nullptr;
 }
 
+DefineVar(Global, bool, ScreenIsLocked);
 DefineVar(Global, Adaptive::WindowLayout, AdaptiveWindowLayout);
 DefineVar(Global, Adaptive::ChatLayout, AdaptiveChatLayout);
-DefineVar(Global, bool, AdaptiveForWide);
 DefineRefVar(Global, base::Observable<void>, AdaptiveChanged);
 
-DefineVar(Global, bool, DialogsFiltersEnabled);
-DefineVar(Global, bool, ModerateModeEnabled);
-
-DefineVar(Global, bool, ScreenIsLocked);
-
-DefineVar(Global, float64, RememberedSongVolume);
-DefineVar(Global, float64, SongVolume);
-DefineRefVar(Global, base::Observable<void>, SongVolumeChanged);
-DefineVar(Global, float64, VideoVolume);
-DefineRefVar(Global, base::Observable<void>, VideoVolumeChanged);
-
-DefineVar(Global, bool, AskDownloadPath);
-DefineVar(Global, QString, DownloadPath);
-DefineVar(Global, QByteArray, DownloadPathBookmark);
-DefineRefVar(Global, base::Observable<void>, DownloadPathChanged);
-
-DefineVar(Global, bool, VoiceMsgPlaybackDoubled);
-DefineVar(Global, bool, SoundNotify);
-DefineVar(Global, bool, DesktopNotify);
-DefineVar(Global, bool, FlashBounceNotify);
-DefineVar(Global, bool, RestoreSoundNotifyFromTray);
-DefineVar(Global, bool, RestoreFlashBounceNotifyFromTray);
-DefineVar(Global, DBINotifyView, NotifyView);
-DefineVar(Global, bool, NativeNotifications);
-DefineVar(Global, int, NotificationsCount);
-DefineVar(Global, Notify::ScreenCorner, NotificationsCorner);
 DefineVar(Global, bool, NotificationsDemoIsShown);
 
 DefineVar(Global, bool, TryIPv6);
@@ -447,7 +387,6 @@ DefineVar(Global, MTP::ProxyData::Settings, ProxySettings);
 DefineVar(Global, bool, UseProxyForCalls);
 DefineRefVar(Global, base::Observable<void>, ConnectionTypeChanged);
 
-DefineVar(Global, int, AutoLock);
 DefineVar(Global, bool, LocalPasscode);
 DefineRefVar(Global, base::Observable<void>, LocalPasscodeChanged);
 
@@ -455,10 +394,4 @@ DefineRefVar(Global, base::Variable<DBIWorkMode>, WorkMode);
 
 DefineRefVar(Global, base::Observable<void>, PeerChooseCancel);
 
-DefineVar(Global, QString, CallOutputDeviceID);
-DefineVar(Global, QString, CallInputDeviceID);
-DefineVar(Global, int, CallOutputVolume);
-DefineVar(Global, int, CallInputVolume);
-DefineVar(Global, bool, CallAudioDuckingEnabled);
-
 } // namespace Global
diff --git a/Telegram/SourceFiles/facades.h b/Telegram/SourceFiles/facades.h
index 56693bcf1..cf456a4cf 100644
--- a/Telegram/SourceFiles/facades.h
+++ b/Telegram/SourceFiles/facades.h
@@ -56,18 +56,13 @@ namespace Ui {
 
 // Legacy global methods.
 
-void showPeerProfile(const PeerId &peer);
-void showPeerProfile(const PeerData *peer);
+void showPeerProfile(not_null<PeerData*> peer);
 void showPeerProfile(not_null<const History*> history);
 
-void showPeerHistory(const PeerId &peer, MsgId msgId);
 void showPeerHistoryAtItem(not_null<const HistoryItem*> item);
-
 void showPeerHistory(not_null<const PeerData*> peer, MsgId msgId);
 void showPeerHistory(not_null<const History*> history, MsgId msgId);
-inline void showChatsList() {
-	showPeerHistory(PeerId(0), 0);
-}
+void showChatsList(not_null<Main::Session*> session);
 PeerData *getPeerForMouseAction();
 
 bool skipPaintEvent(QWidget *widget, QPaintEvent *event);
@@ -92,23 +87,6 @@ bool switchInlineBotButtonReceived(
 	UserData *samePeerBot = nullptr,
 	MsgId samePeerReplyTo = 0);
 
-void unreadCounterUpdated();
-
-enum class ScreenCorner {
-	TopLeft     = 0,
-	TopRight    = 1,
-	BottomRight = 2,
-	BottomLeft  = 3,
-};
-
-inline bool IsLeftCorner(ScreenCorner corner) {
-	return (corner == ScreenCorner::TopLeft) || (corner == ScreenCorner::BottomLeft);
-}
-
-inline bool IsTopCorner(ScreenCorner corner) {
-	return (corner == ScreenCorner::TopLeft) || (corner == ScreenCorner::TopRight);
-}
-
 } // namespace Notify
 
 #define DeclareReadOnlyVar(Type, Name) const Type &Name();
@@ -139,43 +117,10 @@ void start();
 void finish();
 
 DeclareVar(bool, ScreenIsLocked);
-
-DeclareVar(Adaptive::WindowLayout, AdaptiveWindowLayout);
 DeclareVar(Adaptive::ChatLayout, AdaptiveChatLayout);
-DeclareVar(bool, AdaptiveForWide);
+DeclareVar(Adaptive::WindowLayout, AdaptiveWindowLayout);
 DeclareRefVar(base::Observable<void>, AdaptiveChanged);
 
-DeclareVar(bool, DialogsFiltersEnabled);
-DeclareVar(bool, ModerateModeEnabled);
-
-constexpr auto kDefaultVolume = 0.9;
-
-DeclareVar(float64, RememberedSongVolume);
-DeclareVar(float64, SongVolume);
-DeclareRefVar(base::Observable<void>, SongVolumeChanged);
-DeclareVar(float64, VideoVolume);
-DeclareRefVar(base::Observable<void>, VideoVolumeChanged);
-DeclareVar(bool, AskDownloadPath);
-DeclareVar(QString, DownloadPath);
-DeclareVar(QByteArray, DownloadPathBookmark);
-DeclareRefVar(base::Observable<void>, DownloadPathChanged);
-DeclareVar(bool, VoiceMsgPlaybackDoubled);
-DeclareVar(bool, SoundNotify);
-DeclareVar(bool, DesktopNotify);
-DeclareVar(bool, FlashBounceNotify);
-DeclareVar(bool, RestoreSoundNotifyFromTray);
-DeclareVar(bool, RestoreFlashBounceNotifyFromTray);
-DeclareVar(DBINotifyView, NotifyView);
-DeclareVar(int, NotificationsCount);
-DeclareVar(Notify::ScreenCorner, NotificationsCorner);
-
-DeclareVar(QString, CallOutputDeviceID);
-DeclareVar(QString, CallInputDeviceID);
-DeclareVar(int, CallOutputVolume);
-DeclareVar(int, CallInputVolume);
-DeclareVar(bool, CallAudioDuckingEnabled);
-
-DeclareVar(bool, NativeNotifications);
 DeclareVar(bool, NotificationsDemoIsShown);
 
 DeclareVar(bool, TryIPv6);
@@ -185,7 +130,6 @@ DeclareVar(MTP::ProxyData::Settings, ProxySettings);
 DeclareVar(bool, UseProxyForCalls);
 DeclareRefVar(base::Observable<void>, ConnectionTypeChanged);
 
-DeclareVar(int, AutoLock);
 DeclareVar(bool, LocalPasscode);
 DeclareRefVar(base::Observable<void>, LocalPasscodeChanged);
 
@@ -213,13 +157,4 @@ inline bool ThreeColumn() {
 	return Global::AdaptiveWindowLayout() == WindowLayout::ThreeColumn;
 }
 
-inline bool ChatNormal() {
-	return !Global::AdaptiveForWide()
-		|| (Global::AdaptiveChatLayout() == ChatLayout::Normal);
-}
-
-inline bool ChatWide() {
-	return !ChatNormal();
-}
-
 } // namespace Adaptive
diff --git a/Telegram/SourceFiles/history/history.cpp b/Telegram/SourceFiles/history/history.cpp
index 713b4932f..a5adc761d 100644
--- a/Telegram/SourceFiles/history/history.cpp
+++ b/Telegram/SourceFiles/history/history.cpp
@@ -44,7 +44,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/text_options.h"
 #include "core/crash_reports.h"
 #include "base/unixtime.h"
-#include "facades.h"
 #include "styles/style_dialogs.h"
 
 namespace {
diff --git a/Telegram/SourceFiles/history/history_inner_widget.cpp b/Telegram/SourceFiles/history/history_inner_widget.cpp
index f1c9b1eb0..ebdb0169d 100644
--- a/Telegram/SourceFiles/history/history_inner_widget.cpp
+++ b/Telegram/SourceFiles/history/history_inner_widget.cpp
@@ -391,7 +391,7 @@ void HistoryInner::enumerateItemsInHistory(History *history, int historytop, Met
 }
 
 bool HistoryInner::canHaveFromUserpics() const {
-	if (_peer->isUser() && !_peer->isSelf() && !Adaptive::ChatWide()) {
+	if (_peer->isUser() && !_peer->isSelf() && !Core::App().settings().chatWide()) {
 		return false;
 	} else if (_peer->isChannel() && !_peer->isMegagroup()) {
 		return false;
@@ -2131,7 +2131,7 @@ void HistoryInner::recountHistoryGeometry() {
 
 		int32 descH = st::msgMargin.top() + st::msgPadding.top() + st::msgNameFont->height + st::botDescSkip + _botAbout->height + st::msgPadding.bottom() + st::msgMargin.bottom();
 		int32 descMaxWidth = _scroll->width();
-		if (Adaptive::ChatWide()) {
+		if (Core::App().settings().chatWide()) {
 			descMaxWidth = qMin(descMaxWidth, int32(st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
 		}
 		int32 descAtX = (descMaxWidth - _botAbout->width) / 2 - st::msgPadding.left();
@@ -2329,7 +2329,7 @@ void HistoryInner::updateSize() {
 	if (_botAbout && _botAbout->height > 0) {
 		int32 descH = st::msgMargin.top() + st::msgPadding.top() + st::msgNameFont->height + st::botDescSkip + _botAbout->height + st::msgPadding.bottom() + st::msgMargin.bottom();
 		int32 descMaxWidth = _scroll->width();
-		if (Adaptive::ChatWide()) {
+		if (Core::App().settings().chatWide()) {
 			descMaxWidth = qMin(descMaxWidth, int32(st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
 		}
 		int32 descAtX = (descMaxWidth - _botAbout->width) / 2 - st::msgPadding.left();
@@ -2680,7 +2680,7 @@ void HistoryInner::mouseActionUpdate() {
 					dateWidth += st::msgServicePadding.left() + st::msgServicePadding.right();
 					auto dateLeft = st::msgServiceMargin.left();
 					auto maxwidth = _contentWidth;
-					if (Adaptive::ChatWide()) {
+					if (Core::App().settings().chatWide()) {
 						maxwidth = qMin(maxwidth, int32(st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
 					}
 					auto widthForDate = maxwidth - st::msgServiceMargin.left() - st::msgServiceMargin.left();
diff --git a/Telegram/SourceFiles/history/history_item.cpp b/Telegram/SourceFiles/history/history_item.cpp
index 3a39883a6..df0659649 100644
--- a/Telegram/SourceFiles/history/history_item.cpp
+++ b/Telegram/SourceFiles/history/history_item.cpp
@@ -27,7 +27,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_shared_media.h"
 //#include "storage/storage_feed_messages.h" // #feed
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "apiwrap.h"
 #include "media/audio/media_audio.h"
 #include "core/application.h"
@@ -304,7 +303,7 @@ bool HistoryItem::isUnreadMention() const {
 
 bool HistoryItem::mentionsMe() const {
 	if (Has<HistoryServicePinned>()
-		&& !history()->session().settings().notifyAboutPinned()) {
+		&& !Core::App().settings().notifyAboutPinned()) {
 		return false;
 	}
 	return _flags & MTPDmessage::Flag::f_mentioned;
diff --git a/Telegram/SourceFiles/history/history_widget.cpp b/Telegram/SourceFiles/history/history_widget.cpp
index 91d09be90..2d8eb53b9 100644
--- a/Telegram/SourceFiles/history/history_widget.cpp
+++ b/Telegram/SourceFiles/history/history_widget.cpp
@@ -506,7 +506,7 @@ HistoryWidget::HistoryWidget(
 		}
 	}, lifetime());
 
-	session().settings().largeEmojiChanges(
+	Core::App().settings().largeEmojiChanges(
 	) | rpl::start_with_next([=] {
 		crl::on_main(this, [=] {
 			updateHistoryGeometry();
@@ -1554,7 +1554,7 @@ bool HistoryWidget::notify_switchInlineBotButtonReceived(const QString &query, U
 		if (h == _history) {
 			applyDraft();
 		} else {
-			Ui::showPeerHistory(toPeerId, ShowAtUnreadMsgId);
+			Ui::showPeerHistory(h->peer, ShowAtUnreadMsgId);
 		}
 		return true;
 	}
@@ -2051,7 +2051,7 @@ void HistoryWidget::clearAllLoadRequests() {
 void HistoryWidget::updateFieldSubmitSettings() {
 	const auto settings = _isInlineBot
 		? Ui::InputField::SubmitSettings::None
-		: session().settings().sendSubmitWay();
+		: Core::App().settings().sendSubmitWay();
 	_field->setSubmitSettings(settings);
 }
 
@@ -5475,7 +5475,7 @@ void HistoryWidget::keyPressEvent(QKeyEvent *e) {
 		}
 		if (!_canSendMessages) {
 			const auto submitting = Ui::InputField::ShouldSubmit(
-				session().settings().sendSubmitWay(),
+				Core::App().settings().sendSubmitWay(),
 				e->modifiers());
 			if (submitting) {
 				sendWithModifiers(e->modifiers());
diff --git a/Telegram/SourceFiles/history/view/history_view_compose_controls.cpp b/Telegram/SourceFiles/history/view/history_view_compose_controls.cpp
index 59568d756..5d1d76cc8 100644
--- a/Telegram/SourceFiles/history/view/history_view_compose_controls.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_compose_controls.cpp
@@ -23,6 +23,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_session_controller.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "inline_bots/inline_results_widget.h"
 #include "facades.h"
 #include "styles/style_history.h"
@@ -207,7 +209,7 @@ void ComposeControls::init() {
 
 void ComposeControls::initField() {
 	_field->setMaxHeight(st::historyComposeFieldMaxHeight);
-	_field->setSubmitSettings(_window->session().settings().sendSubmitWay());
+	_field->setSubmitSettings(Core::App().settings().sendSubmitWay());
 	//Ui::Connect(_field, &Ui::InputField::submitted, [=] { send(); });
 	Ui::Connect(_field, &Ui::InputField::cancelled, [=] { escape(); });
 	//Ui::Connect(_field, &Ui::InputField::tabbed, [=] { fieldTabbed(); });
diff --git a/Telegram/SourceFiles/history/view/history_view_element.cpp b/Telegram/SourceFiles/history/view/history_view_element.cpp
index 92977cdb7..1e9f793c0 100644
--- a/Telegram/SourceFiles/history/view/history_view_element.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_element.cpp
@@ -16,15 +16,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/media/history_view_sticker.h"
 #include "history/view/media/history_view_large_emoji.h"
 #include "history/history.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "chat_helpers/stickers_emoji_pack.h"
 #include "data/data_session.h"
 #include "data/data_groups.h"
 #include "data/data_media_types.h"
 #include "lang/lang_keys.h"
 #include "layout.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_history.h"
 
@@ -164,7 +164,7 @@ void UnreadBar::paint(Painter &p, int y, int w) const {
 
 	int left = st::msgServiceMargin.left();
 	int maxwidth = w;
-	if (Adaptive::ChatWide()) {
+	if (Core::App().settings().chatWide()) {
 		maxwidth = qMin(
 			maxwidth,
 			st::msgMaxWidth
@@ -363,7 +363,7 @@ void Element::refreshMedia(Element *replacing) {
 	if (const auto media = _data->media()) {
 		_media = media->createView(this, replacing);
 	} else if (_data->isIsolatedEmoji()
-		&& session->settings().largeEmoji()) {
+		&& Core::App().settings().largeEmoji()) {
 		const auto emoji = _data->isolatedEmoji();
 		const auto emojiStickers = &session->emojiStickersPack();
 		if (const auto sticker = emojiStickers->stickerForEmoji(emoji)) {
diff --git a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
index 84b8ba105..4c915162e 100644
--- a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
@@ -2168,7 +2168,7 @@ void ListWidget::mouseActionUpdate() {
 					dateWidth += st::msgServicePadding.left() + st::msgServicePadding.right();
 					auto dateLeft = st::msgServiceMargin.left();
 					auto maxwidth = view->width();
-					if (Adaptive::ChatWide()) {
+					if (Core::App().settings().chatWide()) {
 						maxwidth = qMin(maxwidth, int32(st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
 					}
 					auto widthForDate = maxwidth - st::msgServiceMargin.left() - st::msgServiceMargin.left();
diff --git a/Telegram/SourceFiles/history/view/history_view_message.cpp b/Telegram/SourceFiles/history/view/history_view_message.cpp
index 049b5decb..180050360 100644
--- a/Telegram/SourceFiles/history/view/history_view_message.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_message.cpp
@@ -13,6 +13,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/media/history_view_media.h"
 #include "history/view/media/history_view_web_page.h"
 #include "history/history.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "ui/toast/toast.h"
 #include "ui/text/text_utilities.h"
 #include "ui/text/text_entity.h"
@@ -454,7 +456,7 @@ void Message::draw(
 		auto skipTail = isAttachedToNext()
 			|| (media && media->skipBubbleTail())
 			|| (keyboard != nullptr);
-		auto displayTail = skipTail ? RectPart::None : (outbg && !Adaptive::ChatWide()) ? RectPart::Right : RectPart::Left;
+		auto displayTail = skipTail ? RectPart::None : (outbg && !Core::App().settings().chatWide()) ? RectPart::Right : RectPart::Left;
 		PaintBubble(p, g, width(), selected, outbg, displayTail);
 
 		// Entry page is always a bubble bottom.
@@ -796,7 +798,7 @@ bool Message::hasFromPhoto() const {
 		const auto item = message();
 		if (item->isPost() || item->isEmpty()) {
 			return false;
-		} else if (Adaptive::ChatWide()) {
+		} else if (Core::App().settings().chatWide()) {
 			return true;
 		} else if (item->history()->peer->isSelf()) {
 			return item->Has<HistoryMessageForwarded>();
@@ -1786,7 +1788,7 @@ QRect Message::countGeometry() const {
 	const auto availableWidth = width()
 		- st::msgMargin.left()
 		- st::msgMargin.right();
-	auto contentLeft = (outbg && !Adaptive::ChatWide())
+	auto contentLeft = (outbg && !Core::App().settings().chatWide())
 		? st::msgMargin.right()
 		: st::msgMargin.left();
 	auto contentWidth = availableWidth;
@@ -1809,7 +1811,7 @@ QRect Message::countGeometry() const {
 			contentWidth = mediaWidth;
 		}
 	}
-	if (contentWidth < availableWidth && outbg && !Adaptive::ChatWide()) {
+	if (contentWidth < availableWidth && outbg && !Core::App().settings().chatWide()) {
 		contentLeft += availableWidth - contentWidth;
 	}
 
diff --git a/Telegram/SourceFiles/history/view/history_view_service_message.cpp b/Telegram/SourceFiles/history/view/history_view_service_message.cpp
index b8be48278..c72050603 100644
--- a/Telegram/SourceFiles/history/view/history_view_service_message.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_service_message.cpp
@@ -16,10 +16,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_chat.h"
 #include "data/data_channel.h"
 #include "ui/text_options.h"
+#include "core/core_settings.h"
+#include "core/application.h"
 #include "mainwidget.h"
 #include "layout.h"
 #include "lang/lang_keys.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_history.h"
 
@@ -164,7 +165,7 @@ void paintBubblePart(Painter &p, int x, int y, int width, int height, SideStyle
 void paintPreparedDate(Painter &p, const QString &dateText, int dateTextWidth, int y, int w) {
 	int left = st::msgServiceMargin.left();
 	int maxwidth = w;
-	if (Adaptive::ChatWide()) {
+	if (Core::App().settings().chatWide()) {
 		maxwidth = qMin(maxwidth, WideChatWidth());
 	}
 	w = maxwidth - st::msgServiceMargin.left() - st::msgServiceMargin.left();
@@ -320,7 +321,7 @@ not_null<HistoryService*> Service::message() const {
 
 QRect Service::countGeometry() const {
 	auto result = QRect(0, 0, width(), height());
-	if (Adaptive::ChatWide()) {
+	if (Core::App().settings().chatWide()) {
 		result.setWidth(qMin(result.width(), st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
 	}
 	return result.marginsRemoved(st::msgServiceMargin);
@@ -343,7 +344,7 @@ QSize Service::performCountCurrentSize(int newWidth) {
 		item->_textHeight = 0;
 	} else {
 		auto contentWidth = newWidth;
-		if (Adaptive::ChatWide()) {
+		if (Core::App().settings().chatWide()) {
 			accumulate_min(contentWidth, st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left());
 		}
 		contentWidth -= st::msgServiceMargin.left() + st::msgServiceMargin.left(); // two small margins
diff --git a/Telegram/SourceFiles/history/view/media/history_view_media_unwrapped.cpp b/Telegram/SourceFiles/history/view/media/history_view_media_unwrapped.cpp
index db75eed40..62f1f5a6b 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_media_unwrapped.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_media_unwrapped.cpp
@@ -13,8 +13,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "history/history_item_components.h"
 #include "lottie/lottie_single_player.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "layout.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_history.h"
 
@@ -87,7 +88,7 @@ QSize UnwrappedMedia::countCurrentSize(int newWidth) {
 		}
 	}
 	auto newHeight = minHeight();
-	if (_parent->hasOutLayout() && !Adaptive::ChatWide()) {
+	if (_parent->hasOutLayout() && !Core::App().settings().chatWide()) {
 		// Add some height to isolated emoji for the timestamp info.
 		const auto infoHeight = st::msgDateImgPadding.y() * 2
 			+ st::msgDateFont->height;
@@ -109,7 +110,7 @@ void UnwrappedMedia::draw(
 	}
 	bool selected = (selection == FullSelection);
 
-	const auto rightAligned = _parent->hasOutLayout() && !Adaptive::ChatWide();
+	const auto rightAligned = _parent->hasOutLayout() && !Core::App().settings().chatWide();
 	const auto inWebPage = (_parent->media() != this);
 	const auto item = _parent->data();
 	const auto via = inWebPage ? nullptr : item->Get<HistoryMessageVia>();
@@ -177,7 +178,7 @@ void UnwrappedMedia::drawSurrounding(
 		const HistoryMessageVia *via,
 		const HistoryMessageReply *reply,
 		const HistoryMessageForwarded *forwarded) const {
-	const auto rightAligned = _parent->hasOutLayout() && !Adaptive::ChatWide();
+	const auto rightAligned = _parent->hasOutLayout() && !Core::App().settings().chatWide();
 	const auto rightAction = _parent->displayRightAction();
 	const auto fullRight = calculateFullRight(inner);
 	auto fullBottom = height();
@@ -236,7 +237,7 @@ PointState UnwrappedMedia::pointState(QPoint point) const {
 		return PointState::Outside;
 	}
 
-	const auto rightAligned = _parent->hasOutLayout() && !Adaptive::ChatWide();
+	const auto rightAligned = _parent->hasOutLayout() && !Core::App().settings().chatWide();
 	const auto inWebPage = (_parent->media() != this);
 	const auto item = _parent->data();
 	const auto via = inWebPage ? nullptr : item->Get<HistoryMessageVia>();
@@ -276,7 +277,7 @@ TextState UnwrappedMedia::textState(QPoint point, StateRequest request) const {
 		return result;
 	}
 
-	const auto rightAligned = _parent->hasOutLayout() && !Adaptive::ChatWide();
+	const auto rightAligned = _parent->hasOutLayout() && !Core::App().settings().chatWide();
 	const auto inWebPage = (_parent->media() != this);
 	const auto item = _parent->data();
 	const auto via = inWebPage ? nullptr : item->Get<HistoryMessageVia>();
@@ -387,7 +388,7 @@ std::unique_ptr<Lottie::SinglePlayer> UnwrappedMedia::stickerTakeLottie() {
 }
 
 int UnwrappedMedia::calculateFullRight(const QRect &inner) const {
-	const auto rightAligned = _parent->hasOutLayout() && !Adaptive::ChatWide();
+	const auto rightAligned = _parent->hasOutLayout() && !Core::App().settings().chatWide();
 	const auto infoWidth = _parent->infoWidth()
 		+ st::msgDateImgPadding.x() * 2
 		+ st::msgReplyPadding.left();
@@ -432,7 +433,7 @@ bool UnwrappedMedia::needInfoDisplay() const {
 		|| (_parent->displayRightAction())
 		|| (_parent->isLastAndSelfMessage())
 		|| (_parent->hasOutLayout()
-			&& !Adaptive::ChatWide()
+			&& !Core::App().settings().chatWide()
 			&& _content->alwaysShowOutTimestamp());
 }
 
diff --git a/Telegram/SourceFiles/history/view/media/history_view_sticker.cpp b/Telegram/SourceFiles/history/view/media/history_view_sticker.cpp
index 4f2bf0f58..946cd76e1 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_sticker.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_sticker.cpp
@@ -17,8 +17,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/media/history_view_media_common.h"
 #include "ui/image/image.h"
 #include "ui/emoji_config.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "main/main_account.h"
 #include "main/main_app_config.h"
 #include "mainwindow.h" // App::wnd()->sessionController.
@@ -190,7 +191,7 @@ void Sticker::paintLottie(Painter &p, const QRect &r, bool selected) {
 		: (_diceIndex == 0)
 		? false
 		: (isEmojiSticker()
-			|| !_data->session().settings().loopAnimatedStickers());
+			|| !Core::App().settings().loopAnimatedStickers());
 	const auto count = _lottie->information().framesCount;
 	_atTheEnd = (frame.index + 1 == count);
 	_nextLastDiceFrame = !paused
diff --git a/Telegram/SourceFiles/intro/intro_step.cpp b/Telegram/SourceFiles/intro/intro_step.cpp
index 46c9dd7b0..db5b04a61 100644
--- a/Telegram/SourceFiles/intro/intro_step.cpp
+++ b/Telegram/SourceFiles/intro/intro_step.cpp
@@ -15,6 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_account.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "apiwrap.h"
 #include "mainwindow.h"
 #include "boxes/confirm_box.h"
@@ -26,7 +28,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_auto_download.h"
 #include "window/window_controller.h"
 #include "window/themes/window_theme.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_intro.h"
 #include "styles/style_window.h"
@@ -39,11 +40,11 @@ void PrepareSupportMode(not_null<Main::Session*> session) {
 	using ::Data::AutoDownload::Full;
 
 	anim::SetDisabled(true);
-	Local::writeSettings();
+	Core::App().settings().setDesktopNotify(false);
+	Core::App().settings().setSoundNotify(false);
+	Core::App().settings().setFlashBounceNotify(false);
+	Core::App().saveSettings();
 
-	Global::SetDesktopNotify(false);
-	Global::SetSoundNotify(false);
-	Global::SetFlashBounceNotify(false);
 	session->settings().autoDownload() = Full::FullDisabled();
 	session->saveSettings();
 }
diff --git a/Telegram/SourceFiles/intro/intro_widget.cpp b/Telegram/SourceFiles/intro/intro_widget.cpp
index 33f1c3198..c4476a5c9 100644
--- a/Telegram/SourceFiles/intro/intro_widget.cpp
+++ b/Telegram/SourceFiles/intro/intro_widget.cpp
@@ -29,7 +29,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_connecting_widget.h"
 #include "base/platform/base_platform_info.h"
 #include "api/api_text_entities.h"
-#include "facades.h"
 #include "app.h"
 #include "styles/style_layers.h"
 #include "styles/style_intro.h"
diff --git a/Telegram/SourceFiles/lang/lang_cloud_manager.cpp b/Telegram/SourceFiles/lang/lang_cloud_manager.cpp
index 0351b03ea..aac839edd 100644
--- a/Telegram/SourceFiles/lang/lang_cloud_manager.cpp
+++ b/Telegram/SourceFiles/lang/lang_cloud_manager.cpp
@@ -14,7 +14,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/localstorage.h"
 #include "core/application.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "boxes/confirm_box.h"
 #include "ui/wrap/padding_wrap.h"
 #include "ui/widgets/labels.h"
@@ -158,7 +158,7 @@ Language ParseLanguage(const MTPLangPackLanguage &data) {
 
 CloudManager::CloudManager(Instance &langpack)
 : _langpack(langpack) {
-	Core::App().accounts().activeValue(
+	Core::App().domain().activeValue(
 	) | rpl::map([=](Main::Account *account) {
 		if (!account) {
 			_api.reset();
diff --git a/Telegram/SourceFiles/main/main_account.cpp b/Telegram/SourceFiles/main/main_account.cpp
index 1ad1054c9..2ec05db8e 100644
--- a/Telegram/SourceFiles/main/main_account.cpp
+++ b/Telegram/SourceFiles/main/main_account.cpp
@@ -11,7 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/launcher.h"
 #include "core/shortcuts.h"
 #include "storage/storage_account.h"
-#include "storage/storage_accounts.h" // Storage::StartResult.
+#include "storage/storage_domain.h" // Storage::StartResult.
 #include "storage/serialize_common.h"
 #include "storage/serialize_peer.h"
 #include "storage/localstorage.h"
@@ -28,6 +28,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_updates.h"
 #include "main/main_app_config.h"
 #include "main/main_session.h"
+#include "main/main_domain.h"
 #include "main/main_session_settings.h"
 #include "facades.h"
 
@@ -45,8 +46,9 @@ namespace {
 
 } // namespace
 
-Account::Account(const QString &dataName, int index)
-: _local(std::make_unique<Storage::Account>(
+Account::Account(not_null<Domain*> domain, const QString &dataName, int index)
+: _domain(domain)
+, _local(std::make_unique<Storage::Account>(
 	this,
 	ComposeDataString(dataName, index))) {
 }
@@ -58,6 +60,10 @@ Account::~Account() {
 	destroySession();
 }
 
+Storage::Domain &Account::domainLocal() const {
+	return _domain->local();
+}
+
 [[nodiscard]] Storage::StartResult Account::legacyStart(
 		const QByteArray &passcode) {
 	Expects(!_appConfig);
@@ -493,7 +499,7 @@ void Account::forcedLogOut() {
 void Account::loggedOut() {
 	_loggingOut = false;
 	Media::Player::mixer()->stopAndClear();
-	Global::SetVoiceMsgPlaybackDoubled(false);
+	Core::App().settings().setVoiceMsgPlaybackDoubled(false); // #TODO multi properly reset settings
 	if (const auto window = Core::App().activeWindow()) {
 		window->tempDirDelete(Local::ClearManagerAll);
 	}
diff --git a/Telegram/SourceFiles/main/main_account.h b/Telegram/SourceFiles/main/main_account.h
index c1af51663..551baf55b 100644
--- a/Telegram/SourceFiles/main/main_account.h
+++ b/Telegram/SourceFiles/main/main_account.h
@@ -13,6 +13,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Storage {
 class Account;
+class Domain;
 enum class StartResult : uchar;
 } // namespace Storage
 
@@ -23,17 +24,21 @@ class Config;
 
 namespace Main {
 
+class Domain;
 class Session;
 class SessionSettings;
 class AppConfig;
 
 class Account final : public base::has_weak_ptr {
 public:
-	Account(const QString &dataName, int index);
+	Account(not_null<Domain*> domain, const QString &dataName, int index);
 	~Account();
 
-	Account(const Account &other) = delete;
-	Account &operator=(const Account &other) = delete;
+	[[nodiscard]] Domain &domain() const {
+		return *_domain;
+	}
+
+	[[nodiscard]] Storage::Domain &domainLocal() const;
 
 	[[nodiscard]] Storage::StartResult legacyStart(
 		const QByteArray &passcode);
@@ -100,6 +105,8 @@ public:
 	}
 
 private:
+	static constexpr auto kDefaultSaveDelay = crl::time(1000);
+
 	void startMtp(std::unique_ptr<MTP::Config> config);
 	void createSession(
 		const MTPUser &user,
@@ -116,6 +123,7 @@ private:
 
 	void loggedOut();
 
+	const not_null<Domain*> _domain;
 	const std::unique_ptr<Storage::Account> _local;
 
 	std::unique_ptr<MTP::Instance> _mtp;
diff --git a/Telegram/SourceFiles/main/main_accounts.cpp b/Telegram/SourceFiles/main/main_domain.cpp
similarity index 79%
rename from Telegram/SourceFiles/main/main_accounts.cpp
rename to Telegram/SourceFiles/main/main_domain.cpp
index 8979fd5ed..ebdfed1f0 100644
--- a/Telegram/SourceFiles/main/main_accounts.cpp
+++ b/Telegram/SourceFiles/main/main_domain.cpp
@@ -5,7 +5,7 @@ the official desktop application for the Telegram messaging service.
 For license and copyright information please follow this link:
 https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 
 #include "core/application.h"
 #include "core/shortcuts.h"
@@ -14,24 +14,24 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_session.h"
 #include "mtproto/mtproto_config.h"
 #include "mtproto/mtproto_dc_options.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "storage/localstorage.h"
 #include "facades.h"
 
 namespace Main {
 
-Accounts::Accounts(const QString &dataName)
+Domain::Domain(const QString &dataName)
 : _dataName(dataName)
-, _local(std::make_unique<Storage::Accounts>(this, dataName)) {
+, _local(std::make_unique<Storage::Domain>(this, dataName)) {
 }
 
-Accounts::~Accounts() = default;
+Domain::~Domain() = default;
 
-bool Accounts::started() const {
+bool Domain::started() const {
 	return !_accounts.empty();
 }
 
-Storage::StartResult Accounts::start(const QByteArray &passcode) {
+Storage::StartResult Domain::start(const QByteArray &passcode) {
 	Expects(!started());
 
 	const auto result = _local->start(passcode);
@@ -46,13 +46,13 @@ Storage::StartResult Accounts::start(const QByteArray &passcode) {
 	return result;
 }
 
-void Accounts::finish() {
+void Domain::finish() {
 	_activeIndex = -1;
 	_active = nullptr;
 	base::take(_accounts);
 }
 
-void Accounts::accountAddedInStorage(
+void Domain::accountAddedInStorage(
 		int index,
 		std::unique_ptr<Account> account) {
 	Expects(account != nullptr);
@@ -64,7 +64,7 @@ void Accounts::accountAddedInStorage(
 	_accounts.emplace(index, std::move(account));
 };
 
-void Accounts::resetWithForgottenPasscode() {
+void Domain::resetWithForgottenPasscode() {
 	if (_accounts.empty()) {
 		_local->startFromScratch();
 		activateAfterStarting();
@@ -75,7 +75,7 @@ void Accounts::resetWithForgottenPasscode() {
 	}
 }
 
-void Accounts::activateAfterStarting() {
+void Domain::activateAfterStarting() {
 	Expects(started());
 
 	for (const auto &[index, account] : _accounts) {
@@ -86,57 +86,57 @@ void Accounts::activateAfterStarting() {
 	removePasscodeIfEmpty();
 }
 
-const base::flat_map<int, std::unique_ptr<Account>> &Accounts::list() const {
+const base::flat_map<int, std::unique_ptr<Account>> &Domain::accounts() const {
 	return _accounts;
 }
 
-rpl::producer<Account*> Accounts::activeValue() const {
+rpl::producer<Account*> Domain::activeValue() const {
 	return _active.value();
 }
 
-int Accounts::activeIndex() const {
+int Domain::activeIndex() const {
 	Expects(_accounts.contains(_activeIndex));
 
 	return _activeIndex;
 }
 
-Account &Accounts::active() const {
+Account &Domain::active() const {
 	Expects(!_accounts.empty());
 
 	Ensures(_active.current() != nullptr);
 	return *_active.current();
 }
 
-rpl::producer<not_null<Account*>> Accounts::activeChanges() const {
+rpl::producer<not_null<Account*>> Domain::activeChanges() const {
 	return _active.changes() | rpl::map([](Account *value) {
 		return not_null{ value };
 	});
 }
 
-rpl::producer<Session*> Accounts::activeSessionChanges() const {
+rpl::producer<Session*> Domain::activeSessionChanges() const {
 	return _activeSessions.events();
 }
 
-rpl::producer<Session*> Accounts::activeSessionValue() const {
+rpl::producer<Session*> Domain::activeSessionValue() const {
 	const auto current = (_accounts.empty() || !active().sessionExists())
 		? nullptr
 		: &active().session();
 	return rpl::single(current) | rpl::then(_activeSessions.events());
 }
 
-int Accounts::unreadBadge() const {
+int Domain::unreadBadge() const {
 	return _unreadBadge;
 }
 
-bool Accounts::unreadBadgeMuted() const {
+bool Domain::unreadBadgeMuted() const {
 	return _unreadBadgeMuted;
 }
 
-rpl::producer<> Accounts::unreadBadgeChanges() const {
+rpl::producer<> Domain::unreadBadgeChanges() const {
 	return _unreadBadgeChanges.events();
 }
 
-void Accounts::notifyUnreadBadgeChanged() {
+void Domain::notifyUnreadBadgeChanged() {
 	for (const auto &[index, account] : _accounts) {
 		if (account->sessionExists()) {
 			account->session().data().notifyUnreadBadgeChanged();
@@ -144,7 +144,7 @@ void Accounts::notifyUnreadBadgeChanged() {
 	}
 }
 
-void Accounts::updateUnreadBadge() {
+void Domain::updateUnreadBadge() {
 	_unreadBadge = 0;
 	_unreadBadgeMuted = true;
 	for (const auto &[index, account] : _accounts) {
@@ -159,7 +159,7 @@ void Accounts::updateUnreadBadge() {
 	_unreadBadgeChanges.fire({});
 }
 
-void Accounts::scheduleUpdateUnreadBadge() {
+void Domain::scheduleUpdateUnreadBadge() {
 	if (_unreadBadgeUpdateScheduled) {
 		return;
 	}
@@ -170,7 +170,7 @@ void Accounts::scheduleUpdateUnreadBadge() {
 	}));
 }
 
-int Accounts::add(MTP::Environment environment) {
+int Domain::add(MTP::Environment environment) {
 	Expects(_active.current() != nullptr);
 
 	static const auto cloneConfig = [](const MTP::Config &config) {
@@ -183,7 +183,7 @@ int Accounts::add(MTP::Environment environment) {
 		if (_active.current()->mtp().environment() == environment) {
 			return accountConfig(_active.current());
 		}
-		for (const auto &[index, account] : list()) {
+		for (const auto &[index, account] : _accounts) {
 			if (account->mtp().environment() == environment) {
 				return accountConfig(account.get());
 			}
@@ -198,14 +198,14 @@ int Accounts::add(MTP::Environment environment) {
 	}
 	const auto account = _accounts.emplace(
 		index,
-		std::make_unique<Account>(_dataName, index)
+		std::make_unique<Account>(this, _dataName, index)
 	).first->second.get();
 	_local->startAdded(account, std::move(config));
 	watchSession(account);
 	return index;
 }
 
-void Accounts::watchSession(not_null<Account*> account) {
+void Domain::watchSession(not_null<Account*> account) {
 	account->sessionValue(
 	) | rpl::filter([=](Session *session) {
 		return session != nullptr;
@@ -230,7 +230,7 @@ void Accounts::watchSession(not_null<Account*> account) {
 	}, account->lifetime());
 }
 
-void Accounts::activateAuthedAccount() {
+void Domain::activateAuthedAccount() {
 	Expects(started());
 
 	if (_active.current()->sessionExists()) {
@@ -244,7 +244,7 @@ void Accounts::activateAuthedAccount() {
 	}
 }
 
-bool Accounts::removePasscodeIfEmpty() {
+bool Domain::removePasscodeIfEmpty() {
 	if (_accounts.size() != 1 || _active.current()->sessionExists()) {
 		return false;
 	}
@@ -258,7 +258,7 @@ bool Accounts::removePasscodeIfEmpty() {
 	return true;
 }
 
-void Accounts::removeRedundantAccounts() {
+void Domain::removeRedundantAccounts() {
 	Expects(started());
 
 	const auto was = _accounts.size();
@@ -278,7 +278,7 @@ void Accounts::removeRedundantAccounts() {
 	}
 }
 
-void Accounts::checkForLastProductionConfig(
+void Domain::checkForLastProductionConfig(
 		not_null<Main::Account*> account) {
 	const auto mtp = &account->mtp();
 	if (mtp->environment() != MTP::Environment::Production) {
@@ -293,7 +293,7 @@ void Accounts::checkForLastProductionConfig(
 	Core::App().refreshFallbackProductionConfig(mtp->config());
 }
 
-void Accounts::activate(int index) {
+void Domain::activate(int index) {
 	Expects(_accounts.contains(index));
 
 	const auto changed = (_activeIndex != index);
@@ -308,7 +308,7 @@ void Accounts::activate(int index) {
 	}
 }
 
-void Accounts::scheduleWriteAccounts() {
+void Domain::scheduleWriteAccounts() {
 	if (_writeAccountsScheduled) {
 		return;
 	}
diff --git a/Telegram/SourceFiles/main/main_accounts.h b/Telegram/SourceFiles/main/main_domain.h
similarity index 87%
rename from Telegram/SourceFiles/main/main_accounts.h
rename to Telegram/SourceFiles/main/main_domain.h
index 53dd13437..032dcbab8 100644
--- a/Telegram/SourceFiles/main/main_accounts.h
+++ b/Telegram/SourceFiles/main/main_domain.h
@@ -7,8 +7,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "base/timer.h"
+
 namespace Storage {
-class Accounts;
+class Domain;
 enum class StartResult : uchar;
 } // namespace Storage
 
@@ -21,21 +23,23 @@ namespace Main {
 class Account;
 class Session;
 
-class Accounts final {
+class Domain final {
 public:
-	explicit Accounts(const QString &dataName);
-	~Accounts();
+	static constexpr auto kMaxAccounts = 3;
+
+	explicit Domain(const QString &dataName);
+	~Domain();
 
 	[[nodiscard]] bool started() const;
 	[[nodiscard]] Storage::StartResult start(const QByteArray &passcode);
 	void resetWithForgottenPasscode();
 	void finish();
 
-	[[nodiscard]] Storage::Accounts &local() const {
+	[[nodiscard]] Storage::Domain &local() const {
 		return *_local;
 	}
 
-	[[nodiscard]] auto list() const
+	[[nodiscard]] auto accounts() const
 		-> const base::flat_map<int, std::unique_ptr<Account>> &;
 	[[nodiscard]] rpl::producer<Account*> activeValue() const;
 
@@ -55,7 +59,7 @@ public:
 	[[nodiscard]] int add(MTP::Environment environment);
 	void activate(int index);
 
-	// Interface for Storage::Accounts.
+	// Interface for Storage::Domain.
 	void accountAddedInStorage(int index, std::unique_ptr<Account> account);
 
 private:
@@ -70,7 +74,7 @@ private:
 	void scheduleUpdateUnreadBadge();
 
 	const QString _dataName;
-	const std::unique_ptr<Storage::Accounts> _local;
+	const std::unique_ptr<Storage::Domain> _local;
 
 	base::flat_map<int, std::unique_ptr<Account>> _accounts;
 	rpl::variable<Account*> _active = nullptr;
diff --git a/Telegram/SourceFiles/main/main_session.cpp b/Telegram/SourceFiles/main/main_session.cpp
index 44d07aa44..ea4f432f2 100644
--- a/Telegram/SourceFiles/main/main_session.cpp
+++ b/Telegram/SourceFiles/main/main_session.cpp
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_updates.h"
 #include "core/application.h"
 #include "main/main_account.h"
+#include "main/main_domain.h"
 #include "main/main_session_settings.h"
 #include "mtproto/mtproto_config.h"
 #include "chat_helpers/stickers_emoji_pack.h"
@@ -42,7 +43,7 @@ namespace {
 constexpr auto kLegacyCallsPeerToPeerNobody = 4;
 
 [[nodiscard]] QString ValidatedInternalLinksDomain(
-		not_null<const Main::Session*> session) {
+		not_null<const Session*> session) {
 	// This domain should start with 'http[s]://' and end with '/'.
 	// Like 'https://telegram.me/' or 'https://t.me/'.
 	const auto &domain = session->serverConfig().internalLinksDomain;
@@ -63,7 +64,7 @@ constexpr auto kLegacyCallsPeerToPeerNobody = 4;
 } // namespace
 
 Session::Session(
-	not_null<Main::Account*> account,
+	not_null<Account*> account,
 	const MTPUser &user,
 	std::unique_ptr<SessionSettings> settings)
 : _account(account)
@@ -140,7 +141,7 @@ Session::~Session() {
 	ClickHandler::unpressed();
 }
 
-Main::Account &Session::account() const {
+Account &Session::account() const {
 	return *_account;
 }
 
@@ -148,6 +149,14 @@ Storage::Account &Session::local() const {
 	return _account->local();
 }
 
+Domain &Session::domain() const {
+	return _account->domain();
+}
+
+Storage::Domain &Session::domainLocal() const {
+	return _account->domainLocal();
+}
+
 base::Observable<void> &Session::downloaderTaskFinished() {
 	return downloader().taskFinished();
 }
@@ -172,10 +181,21 @@ bool Session::validateSelf(const MTPUser &user) {
 	return true;
 }
 
+void Session::saveSettings() {
+	local().writeSessionSettings();
+}
+
 void Session::saveSettingsDelayed(crl::time delay) {
 	_saveSettingsTimer.callOnce(delay);
 }
 
+void Session::saveSettingsNowIfNeeded() {
+	if (_saveSettingsTimer.isActive()) {
+		_saveSettingsTimer.cancel();
+		saveSettings();
+	}
+}
+
 MTP::DcId Session::mainDcId() const {
 	return _account->mtp().mainDcId();
 }
@@ -227,17 +247,6 @@ Support::Templates& Session::supportTemplates() const {
 	return supportHelper().templates();
 }
 
-void Session::saveSettingsNowIfNeeded() {
-	if (_saveSettingsTimer.isActive()) {
-		_saveSettingsTimer.cancel();
-		saveSettings();
-	}
-}
-
-void Session::saveSettings() {
-	local().writeSessionSettings();
-}
-
 void Session::addWindow(not_null<Window::SessionController*> controller) {
 	_windows.emplace(controller);
 	controller->lifetime().add([=] {
diff --git a/Telegram/SourceFiles/main/main_session.h b/Telegram/SourceFiles/main/main_session.h
index 35300ff04..253d293d9 100644
--- a/Telegram/SourceFiles/main/main_session.h
+++ b/Telegram/SourceFiles/main/main_session.h
@@ -38,6 +38,7 @@ class DownloadManagerMtproto;
 class Uploader;
 class Facade;
 class Account;
+class Domain;
 } // namespace Storage
 
 namespace Window {
@@ -59,6 +60,7 @@ class DicePacks;
 namespace Main {
 
 class Account;
+class Domain;
 class SessionSettings;
 
 class Session final
@@ -66,7 +68,7 @@ class Session final
 	, private base::Subscriber {
 public:
 	Session(
-		not_null<Main::Account*> account,
+		not_null<Account*> account,
 		const MTPUser &user,
 		std::unique_ptr<SessionSettings> settings);
 	~Session();
@@ -74,8 +76,10 @@ public:
 	Session(const Session &other) = delete;
 	Session &operator=(const Session &other) = delete;
 
-	[[nodiscard]] Main::Account &account() const;
+	[[nodiscard]] Account &account() const;
 	[[nodiscard]] Storage::Account &local() const;
+	[[nodiscard]] Domain &domain() const;
+	[[nodiscard]] Storage::Domain &domainLocal() const;
 
 	[[nodiscard]] UserId userId() const;
 	[[nodiscard]] PeerId userPeerId() const;
@@ -102,18 +106,19 @@ public:
 	[[nodiscard]] Stickers::DicePacks &diceStickersPacks() const {
 		return *_diceStickersPacks;
 	}
-	[[nodiscard]] Window::Notifications::System &notifications() {
+	[[nodiscard]] Window::Notifications::System &notifications() const {
 		return *_notifications;
 	}
-	[[nodiscard]] Data::Changes &changes() {
+	[[nodiscard]] Data::Changes &changes() const {
 		return *_changes;
 	}
-	[[nodiscard]] Data::Session &data() {
+	[[nodiscard]] Data::Session &data() const {
 		return *_data;
 	}
-	[[nodiscard]] SessionSettings &settings() {
+	[[nodiscard]] SessionSettings &settings() const {
 		return *_settings;
 	}
+
 	void saveSettings();
 	void saveSettingsDelayed(crl::time delay = kDefaultSaveDelay);
 	void saveSettingsNowIfNeeded();
@@ -137,7 +142,6 @@ public:
 
 	void termsDeleteNow();
 
-	void setInternalLinkDomain(const QString &domain) const;
 	[[nodiscard]] QString createInternalLink(const QString &query) const;
 	[[nodiscard]] QString createInternalLinkFull(const QString &query) const;
 
@@ -155,7 +159,7 @@ public:
 private:
 	static constexpr auto kDefaultSaveDelay = crl::time(1000);
 
-	const not_null<Main::Account*> _account;
+	const not_null<Account*> _account;
 
 	const std::unique_ptr<SessionSettings> _settings;
 	const std::unique_ptr<ApiWrap> _api;
diff --git a/Telegram/SourceFiles/main/main_session_settings.cpp b/Telegram/SourceFiles/main/main_session_settings.cpp
index f1e9f0982..8d8a8125e 100644
--- a/Telegram/SourceFiles/main/main_session_settings.cpp
+++ b/Telegram/SourceFiles/main/main_session_settings.cpp
@@ -13,6 +13,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "support/support_common.h"
 #include "storage/serialize_common.h"
 #include "boxes/send_files_box.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "base/platform/base_platform_info.h"
 
 namespace Main {
@@ -20,29 +22,19 @@ namespace {
 
 constexpr auto kLegacyCallsPeerToPeerNobody = 4;
 constexpr auto kVersionTag = -1;
-constexpr auto kVersion = 1;
+constexpr auto kVersion = 2;
 constexpr auto kMaxSavedPlaybackPositions = 16;
 
-[[nodiscard]] qint32 SerializePlaybackSpeed(float64 speed) {
-	return int(std::round(std::clamp(speed * 4., 2., 8.))) - 2;
-}
-
-float64 DeserializePlaybackSpeed(qint32 speed) {
-	return (std::clamp(speed, 0, 6) + 2) / 4.;
-}
-
 } // namespace
 
-SessionSettings::Variables::Variables()
-: sendFilesWay(SendFilesWay::Album)
-, selectorTab(ChatHelpers::SelectorTab::Emoji)
-, floatPlayerColumn(Window::Column::Second)
-, floatPlayerCorner(RectPart::TopRight)
-, dialogsWidthRatio(ThirdColumnByDefault()
+SessionSettings::SessionSettings()
+: _selectorTab(ChatHelpers::SelectorTab::Emoji)
+, _floatPlayerColumn(Window::Column::Second)
+, _floatPlayerCorner(RectPart::TopRight)
+, _dialogsWidthRatio(ThirdColumnByDefault()
 	? kDefaultBigDialogsWidthRatio
 	: kDefaultDialogsWidthRatio)
-, sendSubmitWay(Ui::InputSubmitSettings::Enter)
-, supportSwitch(Support::SwitchSettings::Next) {
+, _supportSwitch(Support::SwitchSettings::Next) {
 }
 
 bool SessionSettings::ThirdColumnByDefault() {
@@ -50,16 +42,12 @@ bool SessionSettings::ThirdColumnByDefault() {
 }
 
 QByteArray SessionSettings::serialize() const {
-	const auto autoDownload = _variables.autoDownload.serialize();
+	const auto autoDownload = _autoDownload.serialize();
 	auto size = sizeof(qint32) * 38;
-	for (const auto &[key, value] : _variables.soundOverrides) {
-		size += Serialize::stringSize(key) + Serialize::stringSize(value);
-	}
-	size += _variables.groupStickersSectionHidden.size() * sizeof(quint64);
-	size += _variables.mediaLastPlaybackPosition.size() * 2 * sizeof(quint64);
+	size += _groupStickersSectionHidden.size() * sizeof(quint64);
+	size += _mediaLastPlaybackPosition.size() * 2 * sizeof(quint64);
 	size += Serialize::bytearraySize(autoDownload);
-	size += Serialize::bytearraySize(_variables.videoPipGeometry);
-	size += sizeof(qint32) + _variables.hiddenPinnedMessages.size() * (sizeof(quint64) + sizeof(qint32));
+	size += sizeof(qint32) + _hiddenPinnedMessages.size() * (sizeof(quint64) + sizeof(qint32));
 
 	auto result = QByteArray();
 	result.reserve(size);
@@ -67,125 +55,98 @@ QByteArray SessionSettings::serialize() const {
 		QDataStream stream(&result, QIODevice::WriteOnly);
 		stream.setVersion(QDataStream::Qt_5_1);
 		stream << qint32(kVersionTag) << qint32(kVersion);
-		stream << static_cast<qint32>(_variables.selectorTab);
-		stream << qint32(_variables.lastSeenWarningSeen ? 1 : 0);
-		stream << qint32(_variables.tabbedSelectorSectionEnabled ? 1 : 0);
-		stream << qint32(_variables.soundOverrides.size());
-		for (const auto &[key, value] : _variables.soundOverrides) {
-			stream << key << value;
-		}
-		stream << qint32(_variables.tabbedSelectorSectionTooltipShown);
-		stream << qint32(_variables.floatPlayerColumn);
-		stream << qint32(_variables.floatPlayerCorner);
-		stream << qint32(_variables.groupStickersSectionHidden.size());
-		for (auto peerId : _variables.groupStickersSectionHidden) {
+		stream << static_cast<qint32>(_selectorTab);
+		stream << qint32(_tabbedSelectorSectionEnabled ? 1 : 0);
+		stream << qint32(_floatPlayerColumn);
+		stream << qint32(_floatPlayerCorner);
+		stream << qint32(_groupStickersSectionHidden.size());
+		for (auto peerId : _groupStickersSectionHidden) {
 			stream << quint64(peerId);
 		}
-		stream << qint32(_variables.thirdSectionInfoEnabled ? 1 : 0);
-		stream << qint32(_variables.smallDialogsList ? 1 : 0);
+		stream << qint32(_thirdSectionInfoEnabled ? 1 : 0);
+		stream << qint32(_smallDialogsList ? 1 : 0);
 		stream << qint32(snap(
-			qRound(_variables.dialogsWidthRatio.current() * 1000000),
+			qRound(_dialogsWidthRatio.current() * 1000000),
 			0,
 			1000000));
-		stream << qint32(_variables.thirdColumnWidth.current());
-		stream << qint32(_variables.thirdSectionExtendedBy);
-		stream << qint32(_variables.sendFilesWay);
-		stream << qint32(0);// LEGACY _variables.callsPeerToPeer.current());
-		stream << qint32(_variables.sendSubmitWay);
-		stream << qint32(_variables.supportSwitch);
-		stream << qint32(_variables.supportFixChatsOrder ? 1 : 0);
-		stream << qint32(_variables.supportTemplatesAutocomplete ? 1 : 0);
-		stream << qint32(_variables.supportChatsTimeSlice.current());
-		stream << qint32(_variables.includeMutedCounter ? 1 : 0);
-		stream << qint32(_variables.countUnreadMessages ? 1 : 0);
-		stream << qint32(_variables.exeLaunchWarning ? 1 : 0);
+		stream << qint32(_thirdColumnWidth.current());
+		stream << qint32(_thirdSectionExtendedBy);
+		stream << qint32(_supportSwitch);
+		stream << qint32(_supportFixChatsOrder ? 1 : 0);
+		stream << qint32(_supportTemplatesAutocomplete ? 1 : 0);
+		stream << qint32(_supportChatsTimeSlice.current());
 		stream << autoDownload;
-		stream << qint32(_variables.supportAllSearchResults.current() ? 1 : 0);
-		stream << qint32(_variables.archiveCollapsed.current() ? 1 : 0);
-		stream << qint32(_variables.notifyAboutPinned.current() ? 1 : 0);
-		stream << qint32(_variables.archiveInMainMenu.current() ? 1 : 0);
-		stream << qint32(_variables.skipArchiveInSearch.current() ? 1 : 0);
-		stream << qint32(0);// LEGACY _variables.autoplayGifs ? 1 : 0);
-		stream << qint32(_variables.loopAnimatedStickers ? 1 : 0);
-		stream << qint32(_variables.largeEmoji.current() ? 1 : 0);
-		stream << qint32(_variables.replaceEmoji.current() ? 1 : 0);
-		stream << qint32(_variables.suggestEmoji ? 1 : 0);
-		stream << qint32(_variables.suggestStickersByEmoji ? 1 : 0);
-		stream << qint32(_variables.spellcheckerEnabled.current() ? 1 : 0);
-		stream << qint32(_variables.mediaLastPlaybackPosition.size());
-		for (const auto &[id, time] : _variables.mediaLastPlaybackPosition) {
+		stream << qint32(_supportAllSearchResults.current() ? 1 : 0);
+		stream << qint32(_archiveCollapsed.current() ? 1 : 0);
+		stream << qint32(_archiveInMainMenu.current() ? 1 : 0);
+		stream << qint32(_skipArchiveInSearch.current() ? 1 : 0);
+		stream << qint32(_mediaLastPlaybackPosition.size());
+		for (const auto &[id, time] : _mediaLastPlaybackPosition) {
 			stream << quint64(id) << qint64(time);
 		}
-		stream << qint32(SerializePlaybackSpeed(_variables.videoPlaybackSpeed.current()));
-		stream << _variables.videoPipGeometry;
-		stream << qint32(_variables.dictionariesEnabled.current().size());
-		for (const auto i : _variables.dictionariesEnabled.current()) {
-			stream << quint64(i);
-		}
-		stream << qint32(_variables.autoDownloadDictionaries.current() ? 1 : 0);
-		stream << qint32(_variables.hiddenPinnedMessages.size());
-		for (const auto &[key, value] : _variables.hiddenPinnedMessages) {
+		stream << qint32(_hiddenPinnedMessages.size());
+		for (const auto &[key, value] : _hiddenPinnedMessages) {
 			stream << quint64(key) << qint32(value);
 		}
+		stream << qint32(_dialogsFiltersEnabled ? 1 : 0);
 	}
 	return result;
 }
 
-std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
-		const QByteArray &serialized) {
+void SessionSettings::addFromSerialized(const QByteArray &serialized) {
 	if (serialized.isEmpty()) {
-		return nullptr;
+		return;
 	}
 
-	auto result = std::make_unique<SessionSettings>();
-	const auto variables = &result->_variables;
+	auto &app = Core::App().settings();
 
 	QDataStream stream(serialized);
 	stream.setVersion(QDataStream::Qt_5_1);
 	qint32 versionTag = 0;
 	qint32 version = 0;
 	qint32 selectorTab = static_cast<qint32>(ChatHelpers::SelectorTab::Emoji);
-	qint32 lastSeenWarningSeen = 0;
+	qint32 appLastSeenWarningSeen = app.lastSeenWarningSeen() ? 1 : 0;
 	qint32 tabbedSelectorSectionEnabled = 1;
-	qint32 tabbedSelectorSectionTooltipShown = 0;
+	qint32 legacyTabbedSelectorSectionTooltipShown = 0;
 	qint32 floatPlayerColumn = static_cast<qint32>(Window::Column::Second);
 	qint32 floatPlayerCorner = static_cast<qint32>(RectPart::TopRight);
-	base::flat_map<QString, QString> soundOverrides;
+	base::flat_map<QString, QString> appSoundOverrides;
 	base::flat_set<PeerId> groupStickersSectionHidden;
 	qint32 thirdSectionInfoEnabled = 0;
 	qint32 smallDialogsList = 0;
-	float64 dialogsWidthRatio = variables->dialogsWidthRatio.current();
-	int thirdColumnWidth = variables->thirdColumnWidth.current();
-	int thirdSectionExtendedBy = variables->thirdSectionExtendedBy;
-	qint32 sendFilesWay = static_cast<qint32>(variables->sendFilesWay);
+	float64 dialogsWidthRatio = _dialogsWidthRatio.current();
+	int thirdColumnWidth = _thirdColumnWidth.current();
+	int thirdSectionExtendedBy = _thirdSectionExtendedBy;
+	qint32 appSendFilesWay = static_cast<qint32>(app.sendFilesWay());
 	qint32 legacyCallsPeerToPeer = qint32(0);
-	qint32 sendSubmitWay = static_cast<qint32>(variables->sendSubmitWay);
-	qint32 supportSwitch = static_cast<qint32>(variables->supportSwitch);
-	qint32 supportFixChatsOrder = variables->supportFixChatsOrder ? 1 : 0;
-	qint32 supportTemplatesAutocomplete = variables->supportTemplatesAutocomplete ? 1 : 0;
-	qint32 supportChatsTimeSlice = variables->supportChatsTimeSlice.current();
-	qint32 includeMutedCounter = variables->includeMutedCounter ? 1 : 0;
-	qint32 countUnreadMessages = variables->countUnreadMessages ? 1 : 0;
-	qint32 exeLaunchWarning = variables->exeLaunchWarning ? 1 : 0;
+	qint32 appSendSubmitWay = static_cast<qint32>(app.sendSubmitWay());
+	qint32 supportSwitch = static_cast<qint32>(_supportSwitch);
+	qint32 supportFixChatsOrder = _supportFixChatsOrder ? 1 : 0;
+	qint32 supportTemplatesAutocomplete = _supportTemplatesAutocomplete ? 1 : 0;
+	qint32 supportChatsTimeSlice = _supportChatsTimeSlice.current();
+	qint32 appIncludeMutedCounter = app.includeMutedCounter() ? 1 : 0;
+	qint32 appCountUnreadMessages = app.countUnreadMessages() ? 1 : 0;
+	qint32 appExeLaunchWarning = app.exeLaunchWarning() ? 1 : 0;
 	QByteArray autoDownload;
-	qint32 supportAllSearchResults = variables->supportAllSearchResults.current() ? 1 : 0;
-	qint32 archiveCollapsed = variables->archiveCollapsed.current() ? 1 : 0;
-	qint32 notifyAboutPinned = variables->notifyAboutPinned.current() ? 1 : 0;
-	qint32 archiveInMainMenu = variables->archiveInMainMenu.current() ? 1 : 0;
-	qint32 skipArchiveInSearch = variables->skipArchiveInSearch.current() ? 1 : 0;
-	qint32 autoplayGifs = 1;
-	qint32 loopAnimatedStickers = variables->loopAnimatedStickers ? 1 : 0;
-	qint32 largeEmoji = variables->largeEmoji.current() ? 1 : 0;
-	qint32 replaceEmoji = variables->replaceEmoji.current() ? 1 : 0;
-	qint32 suggestEmoji = variables->suggestEmoji ? 1 : 0;
-	qint32 suggestStickersByEmoji = variables->suggestStickersByEmoji ? 1 : 0;
-	qint32 spellcheckerEnabled = variables->spellcheckerEnabled.current() ? 1 : 0;
+	qint32 supportAllSearchResults = _supportAllSearchResults.current() ? 1 : 0;
+	qint32 archiveCollapsed = _archiveCollapsed.current() ? 1 : 0;
+	qint32 appNotifyAboutPinned = app.notifyAboutPinned() ? 1 : 0;
+	qint32 archiveInMainMenu = _archiveInMainMenu.current() ? 1 : 0;
+	qint32 skipArchiveInSearch = _skipArchiveInSearch.current() ? 1 : 0;
+	qint32 legacyAutoplayGifs = 1;
+	qint32 appLoopAnimatedStickers = app.loopAnimatedStickers() ? 1 : 0;
+	qint32 appLargeEmoji = app.largeEmoji() ? 1 : 0;
+	qint32 appReplaceEmoji = app.replaceEmoji() ? 1 : 0;
+	qint32 appSuggestEmoji = app.suggestEmoji() ? 1 : 0;
+	qint32 appSuggestStickersByEmoji = app.suggestStickersByEmoji() ? 1 : 0;
+	qint32 appSpellcheckerEnabled = app.spellcheckerEnabled() ? 1 : 0;
 	std::vector<std::pair<DocumentId, crl::time>> mediaLastPlaybackPosition;
-	qint32 videoPlaybackSpeed = SerializePlaybackSpeed(variables->videoPlaybackSpeed.current());
-	QByteArray videoPipGeometry = variables->videoPipGeometry;
-	std::vector<int> dictionariesEnabled;
-	qint32 autoDownloadDictionaries = variables->autoDownloadDictionaries.current() ? 1 : 0;
+	qint32 appVideoPlaybackSpeed = Core::Settings::SerializePlaybackSpeed(app.videoPlaybackSpeed());
+	QByteArray appVideoPipGeometry = app.videoPipGeometry();
+	std::vector<int> appDictionariesEnabled;
+	qint32 appAutoDownloadDictionaries = app.autoDownloadDictionaries() ? 1 : 0;
 	base::flat_map<PeerId, MsgId> hiddenPinnedMessages;
+	qint32 dialogsFiltersEnabled = _dialogsFiltersEnabled ? 1 : 0;
 
 	stream >> versionTag;
 	if (versionTag == kVersionTag) {
@@ -194,23 +155,27 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 	} else {
 		selectorTab = versionTag;
 	}
-	stream >> lastSeenWarningSeen;
+	if (version < 2) {
+		stream >> appLastSeenWarningSeen;
+	}
 	if (!stream.atEnd()) {
 		stream >> tabbedSelectorSectionEnabled;
 	}
-	if (!stream.atEnd()) {
-		auto count = qint32(0);
-		stream >> count;
-		if (stream.status() == QDataStream::Ok) {
-			for (auto i = 0; i != count; ++i) {
-				QString key, value;
-				stream >> key >> value;
-				soundOverrides.emplace(key, value);
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			auto count = qint32(0);
+			stream >> count;
+			if (stream.status() == QDataStream::Ok) {
+				for (auto i = 0; i != count; ++i) {
+					QString key, value;
+					stream >> key >> value;
+					appSoundOverrides.emplace(key, value);
+				}
 			}
 		}
-	}
-	if (!stream.atEnd()) {
-		stream >> tabbedSelectorSectionTooltipShown;
+		if (!stream.atEnd()) {
+			stream >> legacyTabbedSelectorSectionTooltipShown;
+		}
 	}
 	if (!stream.atEnd()) {
 		stream >> floatPlayerColumn >> floatPlayerCorner;
@@ -241,14 +206,18 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 		stream >> value;
 		thirdSectionExtendedBy = value;
 	}
-	if (!stream.atEnd()) {
-		stream >> sendFilesWay;
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			stream >> appSendFilesWay;
+		}
+		if (!stream.atEnd()) {
+			stream >> legacyCallsPeerToPeer;
+		}
 	}
 	if (!stream.atEnd()) {
-		stream >> legacyCallsPeerToPeer;
-	}
-	if (!stream.atEnd()) {
-		stream >> sendSubmitWay;
+		if (version < 2) {
+			stream >> appSendSubmitWay;
+		}
 		stream >> supportSwitch;
 		stream >> supportFixChatsOrder;
 	}
@@ -258,12 +227,14 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 	if (!stream.atEnd()) {
 		stream >> supportChatsTimeSlice;
 	}
-	if (!stream.atEnd()) {
-		stream >> includeMutedCounter;
-		stream >> countUnreadMessages;
-	}
-	if (!stream.atEnd()) {
-		stream >> exeLaunchWarning;
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			stream >> appIncludeMutedCounter;
+			stream >> appCountUnreadMessages;
+		}
+		if (!stream.atEnd()) {
+			stream >> appExeLaunchWarning;
+		}
 	}
 	if (!stream.atEnd()) {
 		stream >> autoDownload;
@@ -274,8 +245,10 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 	if (!stream.atEnd()) {
 		stream >> archiveCollapsed;
 	}
-	if (!stream.atEnd()) {
-		stream >> notifyAboutPinned;
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			stream >> appNotifyAboutPinned;
+		}
 	}
 	if (!stream.atEnd()) {
 		stream >> archiveInMainMenu;
@@ -283,16 +256,18 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 	if (!stream.atEnd()) {
 		stream >> skipArchiveInSearch;
 	}
-	if (!stream.atEnd()) {
-		stream >> autoplayGifs;
-		stream >> loopAnimatedStickers;
-		stream >> largeEmoji;
-		stream >> replaceEmoji;
-		stream >> suggestEmoji;
-		stream >> suggestStickersByEmoji;
-	}
-	if (!stream.atEnd()) {
-		stream >> spellcheckerEnabled;
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			stream >> legacyAutoplayGifs;
+			stream >> appLoopAnimatedStickers;
+			stream >> appLargeEmoji;
+			stream >> appReplaceEmoji;
+			stream >> appSuggestEmoji;
+			stream >> appSuggestStickersByEmoji;
+		}
+		if (!stream.atEnd()) {
+			stream >> appSpellcheckerEnabled;
+		}
 	}
 	if (!stream.atEnd()) {
 		auto count = qint32(0);
@@ -306,25 +281,27 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 			}
 		}
 	}
-	if (!stream.atEnd()) {
-		stream >> videoPlaybackSpeed;
-	}
-	if (!stream.atEnd()) {
-		stream >> videoPipGeometry;
-	}
-	if (!stream.atEnd()) {
-		auto count = qint32(0);
-		stream >> count;
-		if (stream.status() == QDataStream::Ok) {
-			for (auto i = 0; i != count; ++i) {
-				qint64 langId;
-				stream >> langId;
-				dictionariesEnabled.emplace_back(langId);
+	if (version < 2) {
+		if (!stream.atEnd()) {
+			stream >> appVideoPlaybackSpeed;
+		}
+		if (!stream.atEnd()) {
+			stream >> appVideoPipGeometry;
+		}
+		if (!stream.atEnd()) {
+			auto count = qint32(0);
+			stream >> count;
+			if (stream.status() == QDataStream::Ok) {
+				for (auto i = 0; i != count; ++i) {
+					qint64 langId;
+					stream >> langId;
+					appDictionariesEnabled.emplace_back(langId);
+				}
 			}
 		}
-	}
-	if (!stream.atEnd()) {
-		stream >> autoDownloadDictionaries;
+		if (!stream.atEnd()) {
+			stream >> appAutoDownloadDictionaries;
+		}
 	}
 	if (!stream.atEnd()) {
 		auto count = qint32(0);
@@ -338,20 +315,22 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 			}
 		}
 	}
+	if (!stream.atEnd()) {
+		stream >> dialogsFiltersEnabled;
+	}
 	if (stream.status() != QDataStream::Ok) {
 		LOG(("App Error: "
 			"Bad data for Main::SessionSettings::FromSerialized()"));
-		return nullptr;
+		return;
 	}
 	if (!autoDownload.isEmpty()
-		&& !variables->autoDownload.setFromSerialized(autoDownload)) {
-		return nullptr;
+		&& !_autoDownload.setFromSerialized(autoDownload)) {
+		return;
 	}
 	if (!version) {
-		if (!autoplayGifs) {
+		if (!legacyAutoplayGifs) {
 			using namespace Data::AutoDownload;
-			variables->autoDownload = WithDisabledAutoPlay(
-				variables->autoDownload);
+			_autoDownload = WithDisabledAutoPlay(_autoDownload);
 		}
 	}
 
@@ -359,106 +338,110 @@ std::unique_ptr<SessionSettings> SessionSettings::FromSerialized(
 	switch (uncheckedTab) {
 	case ChatHelpers::SelectorTab::Emoji:
 	case ChatHelpers::SelectorTab::Stickers:
-	case ChatHelpers::SelectorTab::Gifs: variables->selectorTab = uncheckedTab; break;
+	case ChatHelpers::SelectorTab::Gifs: _selectorTab = uncheckedTab; break;
 	}
-	variables->lastSeenWarningSeen = (lastSeenWarningSeen == 1);
-	variables->tabbedSelectorSectionEnabled = (tabbedSelectorSectionEnabled == 1);
-	variables->soundOverrides = std::move(soundOverrides);
-	variables->tabbedSelectorSectionTooltipShown = tabbedSelectorSectionTooltipShown;
+	_tabbedSelectorSectionEnabled = (tabbedSelectorSectionEnabled == 1);
 	auto uncheckedColumn = static_cast<Window::Column>(floatPlayerColumn);
 	switch (uncheckedColumn) {
 	case Window::Column::First:
 	case Window::Column::Second:
-	case Window::Column::Third: variables->floatPlayerColumn = uncheckedColumn; break;
+	case Window::Column::Third: _floatPlayerColumn = uncheckedColumn; break;
 	}
 	auto uncheckedCorner = static_cast<RectPart>(floatPlayerCorner);
 	switch (uncheckedCorner) {
 	case RectPart::TopLeft:
 	case RectPart::TopRight:
 	case RectPart::BottomLeft:
-	case RectPart::BottomRight: variables->floatPlayerCorner = uncheckedCorner; break;
+	case RectPart::BottomRight: _floatPlayerCorner = uncheckedCorner; break;
 	}
-	variables->groupStickersSectionHidden = std::move(groupStickersSectionHidden);
-	variables->thirdSectionInfoEnabled = thirdSectionInfoEnabled;
-	variables->smallDialogsList = smallDialogsList;
-	variables->dialogsWidthRatio = dialogsWidthRatio;
-	variables->thirdColumnWidth = thirdColumnWidth;
-	variables->thirdSectionExtendedBy = thirdSectionExtendedBy;
-	if (variables->thirdSectionInfoEnabled) {
-		variables->tabbedSelectorSectionEnabled = false;
-	}
-	auto uncheckedSendFilesWay = static_cast<SendFilesWay>(sendFilesWay);
-	switch (uncheckedSendFilesWay) {
-	case SendFilesWay::Album:
-	case SendFilesWay::Photos:
-	case SendFilesWay::Files: variables->sendFilesWay = uncheckedSendFilesWay; break;
-	}
-	auto uncheckedSendSubmitWay = static_cast<Ui::InputSubmitSettings>(
-		sendSubmitWay);
-	switch (uncheckedSendSubmitWay) {
-	case Ui::InputSubmitSettings::Enter:
-	case Ui::InputSubmitSettings::CtrlEnter: variables->sendSubmitWay = uncheckedSendSubmitWay; break;
+	_groupStickersSectionHidden = std::move(groupStickersSectionHidden);
+	_thirdSectionInfoEnabled = thirdSectionInfoEnabled;
+	_smallDialogsList = smallDialogsList;
+	_dialogsWidthRatio = dialogsWidthRatio;
+	_thirdColumnWidth = thirdColumnWidth;
+	_thirdSectionExtendedBy = thirdSectionExtendedBy;
+	if (_thirdSectionInfoEnabled) {
+		_tabbedSelectorSectionEnabled = false;
 	}
 	auto uncheckedSupportSwitch = static_cast<Support::SwitchSettings>(
 		supportSwitch);
 	switch (uncheckedSupportSwitch) {
 	case Support::SwitchSettings::None:
 	case Support::SwitchSettings::Next:
-	case Support::SwitchSettings::Previous: variables->supportSwitch = uncheckedSupportSwitch; break;
+	case Support::SwitchSettings::Previous: _supportSwitch = uncheckedSupportSwitch; break;
+	}
+	_supportFixChatsOrder = (supportFixChatsOrder == 1);
+	_supportTemplatesAutocomplete = (supportTemplatesAutocomplete == 1);
+	_supportChatsTimeSlice = supportChatsTimeSlice;
+	_hadLegacyCallsPeerToPeerNobody = (legacyCallsPeerToPeer == kLegacyCallsPeerToPeerNobody);
+	_supportAllSearchResults = (supportAllSearchResults == 1);
+	_archiveCollapsed = (archiveCollapsed == 1);
+	_archiveInMainMenu = (archiveInMainMenu == 1);
+	_skipArchiveInSearch = (skipArchiveInSearch == 1);
+	_mediaLastPlaybackPosition = std::move(mediaLastPlaybackPosition);
+	_hiddenPinnedMessages = std::move(hiddenPinnedMessages);
+	_dialogsFiltersEnabled = (dialogsFiltersEnabled == 1);
+
+	if (version < 2) {
+		app.setLastSeenWarningSeen(appLastSeenWarningSeen == 1);
+		for (const auto &[key, value] : appSoundOverrides) {
+			app.setSoundOverride(key, value);
+		}
+		auto uncheckedSendFilesWay = static_cast<SendFilesWay>(appSendFilesWay);
+		switch (uncheckedSendFilesWay) {
+		case SendFilesWay::Album:
+		case SendFilesWay::Photos:
+		case SendFilesWay::Files: app.setSendFilesWay(uncheckedSendFilesWay); break;
+		}
+		auto uncheckedSendSubmitWay = static_cast<Ui::InputSubmitSettings>(
+			appSendSubmitWay);
+		switch (uncheckedSendSubmitWay) {
+		case Ui::InputSubmitSettings::Enter:
+		case Ui::InputSubmitSettings::CtrlEnter: app.setSendSubmitWay(uncheckedSendSubmitWay); break;
+		}
+		app.setIncludeMutedCounter(appIncludeMutedCounter == 1);
+		app.setCountUnreadMessages(appCountUnreadMessages == 1);
+		app.setExeLaunchWarning(appExeLaunchWarning == 1);
+		app.setNotifyAboutPinned(appNotifyAboutPinned == 1);
+		app.setLoopAnimatedStickers(appLoopAnimatedStickers == 1);
+		app.setLargeEmoji(appLargeEmoji == 1);
+		app.setReplaceEmoji(appReplaceEmoji == 1);
+		app.setSuggestEmoji(appSuggestEmoji == 1);
+		app.setSuggestStickersByEmoji(appSuggestStickersByEmoji == 1);
+		app.setSpellcheckerEnabled(appSpellcheckerEnabled == 1);
+		app.setVideoPlaybackSpeed(Core::Settings::DeserializePlaybackSpeed(appVideoPlaybackSpeed));
+		app.setVideoPipGeometry(appVideoPipGeometry);
+		app.setDictionariesEnabled(std::move(appDictionariesEnabled));
+		app.setAutoDownloadDictionaries(appAutoDownloadDictionaries == 1);
 	}
-	variables->supportFixChatsOrder = (supportFixChatsOrder == 1);
-	variables->supportTemplatesAutocomplete = (supportTemplatesAutocomplete == 1);
-	variables->supportChatsTimeSlice = supportChatsTimeSlice;
-	variables->hadLegacyCallsPeerToPeerNobody = (legacyCallsPeerToPeer == kLegacyCallsPeerToPeerNobody);
-	variables->includeMutedCounter = (includeMutedCounter == 1);
-	variables->countUnreadMessages = (countUnreadMessages == 1);
-	variables->exeLaunchWarning = (exeLaunchWarning == 1);
-	variables->supportAllSearchResults = (supportAllSearchResults == 1);
-	variables->archiveCollapsed = (archiveCollapsed == 1);
-	variables->notifyAboutPinned = (notifyAboutPinned == 1);
-	variables->archiveInMainMenu = (archiveInMainMenu == 1);
-	variables->skipArchiveInSearch = (skipArchiveInSearch == 1);
-	variables->loopAnimatedStickers = (loopAnimatedStickers == 1);
-	variables->largeEmoji = (largeEmoji == 1);
-	variables->replaceEmoji = (replaceEmoji == 1);
-	variables->suggestEmoji = (suggestEmoji == 1);
-	variables->suggestStickersByEmoji = (suggestStickersByEmoji == 1);
-	variables->spellcheckerEnabled = (spellcheckerEnabled == 1);
-	variables->mediaLastPlaybackPosition = std::move(mediaLastPlaybackPosition);
-	variables->videoPlaybackSpeed = DeserializePlaybackSpeed(videoPlaybackSpeed);
-	variables->videoPipGeometry = videoPipGeometry;
-	variables->dictionariesEnabled = std::move(dictionariesEnabled);
-	variables->autoDownloadDictionaries = (autoDownloadDictionaries == 1);
-	variables->hiddenPinnedMessages = std::move(hiddenPinnedMessages);
-	return result;
 }
 
 void SessionSettings::setSupportChatsTimeSlice(int slice) {
-	_variables.supportChatsTimeSlice = slice;
+	_supportChatsTimeSlice = slice;
 }
 
 int SessionSettings::supportChatsTimeSlice() const {
-	return _variables.supportChatsTimeSlice.current();
+	return _supportChatsTimeSlice.current();
 }
 
 rpl::producer<int> SessionSettings::supportChatsTimeSliceValue() const {
-	return _variables.supportChatsTimeSlice.value();
+	return _supportChatsTimeSlice.value();
 }
 
 void SessionSettings::setSupportAllSearchResults(bool all) {
-	_variables.supportAllSearchResults = all;
+	_supportAllSearchResults = all;
 }
 
 bool SessionSettings::supportAllSearchResults() const {
-	return _variables.supportAllSearchResults.current();
+	return _supportAllSearchResults.current();
 }
 
 rpl::producer<bool> SessionSettings::supportAllSearchResultsValue() const {
-	return _variables.supportAllSearchResults.value();
+	return _supportAllSearchResults.value();
 }
 
 void SessionSettings::setTabbedSelectorSectionEnabled(bool enabled) {
-	_variables.tabbedSelectorSectionEnabled = enabled;
+	_tabbedSelectorSectionEnabled = enabled;
 	if (enabled) {
 		setThirdSectionInfoEnabled(false);
 	}
@@ -471,8 +454,8 @@ rpl::producer<bool> SessionSettings::tabbedReplacedWithInfoValue() const {
 }
 
 void SessionSettings::setThirdSectionInfoEnabled(bool enabled) {
-	if (_variables.thirdSectionInfoEnabled != enabled) {
-		_variables.thirdSectionInfoEnabled = enabled;
+	if (_thirdSectionInfoEnabled != enabled) {
+		_thirdSectionInfoEnabled = enabled;
 		if (enabled) {
 			setTabbedSelectorSectionEnabled(false);
 		}
@@ -493,40 +476,32 @@ void SessionSettings::setTabbedReplacedWithInfo(bool enabled) {
 	}
 }
 
-QString SessionSettings::getSoundPath(const QString &key) const {
-	auto it = _variables.soundOverrides.find(key);
-	if (it != _variables.soundOverrides.end()) {
-		return it->second;
-	}
-	return qsl(":/sounds/") + key + qsl(".mp3");
-}
-
 void SessionSettings::setDialogsWidthRatio(float64 ratio) {
-	_variables.dialogsWidthRatio = ratio;
+	_dialogsWidthRatio = ratio;
 }
 
 float64 SessionSettings::dialogsWidthRatio() const {
-	return _variables.dialogsWidthRatio.current();
+	return _dialogsWidthRatio.current();
 }
 
 rpl::producer<float64> SessionSettings::dialogsWidthRatioChanges() const {
-	return _variables.dialogsWidthRatio.changes();
+	return _dialogsWidthRatio.changes();
 }
 
 void SessionSettings::setThirdColumnWidth(int width) {
-	_variables.thirdColumnWidth = width;
+	_thirdColumnWidth = width;
 }
 
 int SessionSettings::thirdColumnWidth() const {
-	return _variables.thirdColumnWidth.current();
+	return _thirdColumnWidth.current();
 }
 
 rpl::producer<int> SessionSettings::thirdColumnWidthChanges() const {
-	return _variables.thirdColumnWidth.changes();
+	return _thirdColumnWidth.changes();
 }
 
 void SessionSettings::setMediaLastPlaybackPosition(DocumentId id, crl::time time) {
-	auto &map = _variables.mediaLastPlaybackPosition;
+	auto &map = _mediaLastPlaybackPosition;
 	const auto i = ranges::find(
 		map,
 		id,
@@ -547,90 +522,46 @@ void SessionSettings::setMediaLastPlaybackPosition(DocumentId id, crl::time time
 
 crl::time SessionSettings::mediaLastPlaybackPosition(DocumentId id) const {
 	const auto i = ranges::find(
-		_variables.mediaLastPlaybackPosition,
+		_mediaLastPlaybackPosition,
 		id,
 		&std::pair<DocumentId, crl::time>::first);
-	return (i != _variables.mediaLastPlaybackPosition.end()) ? i->second : 0;
+	return (i != _mediaLastPlaybackPosition.end()) ? i->second : 0;
 }
 
 void SessionSettings::setArchiveCollapsed(bool collapsed) {
-	_variables.archiveCollapsed = collapsed;
+	_archiveCollapsed = collapsed;
 }
 
 bool SessionSettings::archiveCollapsed() const {
-	return _variables.archiveCollapsed.current();
+	return _archiveCollapsed.current();
 }
 
 rpl::producer<bool> SessionSettings::archiveCollapsedChanges() const {
-	return _variables.archiveCollapsed.changes();
+	return _archiveCollapsed.changes();
 }
 
 void SessionSettings::setArchiveInMainMenu(bool inMainMenu) {
-	_variables.archiveInMainMenu = inMainMenu;
+	_archiveInMainMenu = inMainMenu;
 }
 
 bool SessionSettings::archiveInMainMenu() const {
-	return _variables.archiveInMainMenu.current();
+	return _archiveInMainMenu.current();
 }
 
 rpl::producer<bool> SessionSettings::archiveInMainMenuChanges() const {
-	return _variables.archiveInMainMenu.changes();
-}
-
-void SessionSettings::setNotifyAboutPinned(bool notify) {
-	_variables.notifyAboutPinned = notify;
-}
-
-bool SessionSettings::notifyAboutPinned() const {
-	return _variables.notifyAboutPinned.current();
-}
-
-rpl::producer<bool> SessionSettings::notifyAboutPinnedChanges() const {
-	return _variables.notifyAboutPinned.changes();
+	return _archiveInMainMenu.changes();
 }
 
 void SessionSettings::setSkipArchiveInSearch(bool skip) {
-	_variables.skipArchiveInSearch = skip;
+	_skipArchiveInSearch = skip;
 }
 
 bool SessionSettings::skipArchiveInSearch() const {
-	return _variables.skipArchiveInSearch.current();
+	return _skipArchiveInSearch.current();
 }
 
 rpl::producer<bool> SessionSettings::skipArchiveInSearchChanges() const {
-	return _variables.skipArchiveInSearch.changes();
-}
-
-void SessionSettings::setLargeEmoji(bool value) {
-	_variables.largeEmoji = value;
-}
-
-bool SessionSettings::largeEmoji() const {
-	return _variables.largeEmoji.current();
-}
-
-rpl::producer<bool> SessionSettings::largeEmojiValue() const {
-	return _variables.largeEmoji.value();
-}
-
-rpl::producer<bool> SessionSettings::largeEmojiChanges() const {
-	return _variables.largeEmoji.changes();
-}
-
-void SessionSettings::setReplaceEmoji(bool value) {
-	_variables.replaceEmoji = value;
-}
-
-bool SessionSettings::replaceEmoji() const {
-	return _variables.replaceEmoji.current();
-}
-
-rpl::producer<bool> SessionSettings::replaceEmojiValue() const {
-	return _variables.replaceEmoji.value();
-}
-
-rpl::producer<bool> SessionSettings::replaceEmojiChanges() const {
-	return _variables.replaceEmoji.changes();
+	return _skipArchiveInSearch.changes();
 }
 
 } // namespace Main
diff --git a/Telegram/SourceFiles/main/main_session_settings.h b/Telegram/SourceFiles/main/main_session_settings.h
index eb25b1e01..22840e735 100644
--- a/Telegram/SourceFiles/main/main_session_settings.h
+++ b/Telegram/SourceFiles/main/main_session_settings.h
@@ -10,12 +10,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_auto_download.h"
 #include "ui/rect_part.h"
 
-enum class SendFilesWay;
-
-namespace Ui {
-enum class InputSubmitSettings;
-} // namespace Ui
-
 namespace Support {
 enum class SwitchSettings;
 } // namespace Support
@@ -32,46 +26,28 @@ namespace Main {
 
 class SessionSettings final {
 public:
-	[[nodiscard]] QByteArray serialize() const;
-	[[nodiscard]] static std::unique_ptr<SessionSettings> FromSerialized(
-		const QByteArray &serialized);
+	SessionSettings();
 
-	void setLastSeenWarningSeen(bool lastSeenWarningSeen) {
-		_variables.lastSeenWarningSeen = lastSeenWarningSeen;
-	}
-	[[nodiscard]] bool lastSeenWarningSeen() const {
-		return _variables.lastSeenWarningSeen;
-	}
-	void setSendFilesWay(SendFilesWay way) {
-		_variables.sendFilesWay = way;
-	}
-	[[nodiscard]] SendFilesWay sendFilesWay() const {
-		return _variables.sendFilesWay;
-	}
-	void setSendSubmitWay(Ui::InputSubmitSettings value) {
-		_variables.sendSubmitWay = value;
-	}
-	[[nodiscard]] Ui::InputSubmitSettings sendSubmitWay() const {
-		return _variables.sendSubmitWay;
-	}
+	[[nodiscard]] QByteArray serialize() const;
+	[[nodiscard]] void addFromSerialized(const QByteArray &serialized);
 
 	void setSupportSwitch(Support::SwitchSettings value) {
-		_variables.supportSwitch = value;
+		_supportSwitch = value;
 	}
 	[[nodiscard]] Support::SwitchSettings supportSwitch() const {
-		return _variables.supportSwitch;
+		return _supportSwitch;
 	}
 	void setSupportFixChatsOrder(bool fix) {
-		_variables.supportFixChatsOrder = fix;
+		_supportFixChatsOrder = fix;
 	}
 	[[nodiscard]] bool supportFixChatsOrder() const {
-		return _variables.supportFixChatsOrder;
+		return _supportFixChatsOrder;
 	}
 	void setSupportTemplatesAutocomplete(bool enabled) {
-		_variables.supportTemplatesAutocomplete = enabled;
+		_supportTemplatesAutocomplete = enabled;
 	}
 	[[nodiscard]] bool supportTemplatesAutocomplete() const {
-		return _variables.supportTemplatesAutocomplete;
+		return _supportTemplatesAutocomplete;
 	}
 	void setSupportChatsTimeSlice(int slice);
 	[[nodiscard]] int supportChatsTimeSlice() const;
@@ -81,25 +57,25 @@ public:
 	[[nodiscard]] rpl::producer<bool> supportAllSearchResultsValue() const;
 
 	[[nodiscard]] ChatHelpers::SelectorTab selectorTab() const {
-		return _variables.selectorTab;
+		return _selectorTab;
 	}
 	void setSelectorTab(ChatHelpers::SelectorTab tab) {
-		_variables.selectorTab = tab;
+		_selectorTab = tab;
 	}
 	[[nodiscard]] bool tabbedSelectorSectionEnabled() const {
-		return _variables.tabbedSelectorSectionEnabled;
+		return _tabbedSelectorSectionEnabled;
 	}
 	void setTabbedSelectorSectionEnabled(bool enabled);
 	[[nodiscard]] bool thirdSectionInfoEnabled() const {
-		return _variables.thirdSectionInfoEnabled;
+		return _thirdSectionInfoEnabled;
 	}
 	void setThirdSectionInfoEnabled(bool enabled);
 	[[nodiscard]] rpl::producer<bool> thirdSectionInfoEnabledValue() const;
 	[[nodiscard]] int thirdSectionExtendedBy() const {
-		return _variables.thirdSectionExtendedBy;
+		return _thirdSectionExtendedBy;
 	}
 	void setThirdSectionExtendedBy(int savedValue) {
-		_variables.thirdSectionExtendedBy = savedValue;
+		_thirdSectionExtendedBy = savedValue;
 	}
 	[[nodiscard]] bool tabbedReplacedWithInfo() const {
 		return _tabbedReplacedWithInfo;
@@ -107,35 +83,22 @@ public:
 	void setTabbedReplacedWithInfo(bool enabled);
 	[[nodiscard]] rpl::producer<bool> tabbedReplacedWithInfoValue() const;
 	void setSmallDialogsList(bool enabled) {
-		_variables.smallDialogsList = enabled;
+		_smallDialogsList = enabled;
 	}
 	[[nodiscard]] bool smallDialogsList() const {
-		return _variables.smallDialogsList;
-	}
-	void setSoundOverride(const QString &key, const QString &path) {
-		_variables.soundOverrides.emplace(key, path);
-	}
-	void clearSoundOverrides() {
-		_variables.soundOverrides.clear();
-	}
-	[[nodiscard]] QString getSoundPath(const QString &key) const;
-	void setTabbedSelectorSectionTooltipShown(int shown) {
-		_variables.tabbedSelectorSectionTooltipShown = shown;
-	}
-	[[nodiscard]] int tabbedSelectorSectionTooltipShown() const {
-		return _variables.tabbedSelectorSectionTooltipShown;
+		return _smallDialogsList;
 	}
 	void setFloatPlayerColumn(Window::Column column) {
-		_variables.floatPlayerColumn = column;
+		_floatPlayerColumn = column;
 	}
 	[[nodiscard]] Window::Column floatPlayerColumn() const {
-		return _variables.floatPlayerColumn;
+		return _floatPlayerColumn;
 	}
 	void setFloatPlayerCorner(RectPart corner) {
-		_variables.floatPlayerCorner = corner;
+		_floatPlayerCorner = corner;
 	}
 	[[nodiscard]] RectPart floatPlayerCorner() const {
-		return _variables.floatPlayerCorner;
+		return _floatPlayerCorner;
 	}
 	void setDialogsWidthRatio(float64 ratio);
 	[[nodiscard]] float64 dialogsWidthRatio() const;
@@ -145,23 +108,23 @@ public:
 	[[nodiscard]] rpl::producer<int> thirdColumnWidthChanges() const;
 
 	void setGroupStickersSectionHidden(PeerId peerId) {
-		_variables.groupStickersSectionHidden.insert(peerId);
+		_groupStickersSectionHidden.insert(peerId);
 	}
 	[[nodiscard]] bool isGroupStickersSectionHidden(PeerId peerId) const {
-		return _variables.groupStickersSectionHidden.contains(peerId);
+		return _groupStickersSectionHidden.contains(peerId);
 	}
 	void removeGroupStickersSectionHidden(PeerId peerId) {
-		_variables.groupStickersSectionHidden.remove(peerId);
+		_groupStickersSectionHidden.remove(peerId);
 	}
 
 	void setMediaLastPlaybackPosition(DocumentId id, crl::time time);
 	[[nodiscard]] crl::time mediaLastPlaybackPosition(DocumentId id) const;
 
 	[[nodiscard]] Data::AutoDownload::Full &autoDownload() {
-		return _variables.autoDownload;
+		return _autoDownload;
 	}
 	[[nodiscard]] const Data::AutoDownload::Full &autoDownload() const {
-		return _variables.autoDownload;
+		return _autoDownload;
 	}
 
 	void setArchiveCollapsed(bool collapsed);
@@ -172,191 +135,71 @@ public:
 	[[nodiscard]] bool archiveInMainMenu() const;
 	[[nodiscard]] rpl::producer<bool> archiveInMainMenuChanges() const;
 
-	void setNotifyAboutPinned(bool notify);
-	[[nodiscard]] bool notifyAboutPinned() const;
-	[[nodiscard]] rpl::producer<bool> notifyAboutPinnedChanges() const;
-
 	void setSkipArchiveInSearch(bool skip);
 	[[nodiscard]] bool skipArchiveInSearch() const;
 	[[nodiscard]] rpl::producer<bool> skipArchiveInSearchChanges() const;
 
 	[[nodiscard]] bool hadLegacyCallsPeerToPeerNobody() const {
-		return _variables.hadLegacyCallsPeerToPeerNobody;
-	}
-
-	[[nodiscard]] bool includeMutedCounter() const {
-		return _variables.includeMutedCounter;
-	}
-	void setIncludeMutedCounter(bool value) {
-		_variables.includeMutedCounter = value;
-	}
-	[[nodiscard]] bool countUnreadMessages() const {
-		return _variables.countUnreadMessages;
-	}
-	void setCountUnreadMessages(bool value) {
-		_variables.countUnreadMessages = value;
-	}
-	[[nodiscard]] bool exeLaunchWarning() const {
-		return _variables.exeLaunchWarning;
-	}
-	void setExeLaunchWarning(bool warning) {
-		_variables.exeLaunchWarning = warning;
-	}
-	[[nodiscard]] bool loopAnimatedStickers() const {
-		return _variables.loopAnimatedStickers;
-	}
-	void setLoopAnimatedStickers(bool value) {
-		_variables.loopAnimatedStickers = value;
-	}
-	void setLargeEmoji(bool value);
-	[[nodiscard]] bool largeEmoji() const;
-	[[nodiscard]] rpl::producer<bool> largeEmojiValue() const;
-	[[nodiscard]] rpl::producer<bool> largeEmojiChanges() const;
-	void setReplaceEmoji(bool value);
-	[[nodiscard]] bool replaceEmoji() const;
-	[[nodiscard]] rpl::producer<bool> replaceEmojiValue() const;
-	[[nodiscard]] rpl::producer<bool> replaceEmojiChanges() const;
-	[[nodiscard]] bool suggestEmoji() const {
-		return _variables.suggestEmoji;
-	}
-	void setSuggestEmoji(bool value) {
-		_variables.suggestEmoji = value;
-	}
-	[[nodiscard]] bool suggestStickersByEmoji() const {
-		return _variables.suggestStickersByEmoji;
-	}
-	void setSuggestStickersByEmoji(bool value) {
-		_variables.suggestStickersByEmoji = value;
-	}
-
-	void setSpellcheckerEnabled(bool value) {
-		_variables.spellcheckerEnabled = value;
-	}
-	bool spellcheckerEnabled() const {
-		return _variables.spellcheckerEnabled.current();
-	}
-	rpl::producer<bool> spellcheckerEnabledValue() const {
-		return _variables.spellcheckerEnabled.value();
-	}
-	rpl::producer<bool> spellcheckerEnabledChanges() const {
-		return _variables.spellcheckerEnabled.changes();
-	}
-
-	void setDictionariesEnabled(std::vector<int> dictionaries) {
-		_variables.dictionariesEnabled = std::move(dictionaries);
-	}
-
-	std::vector<int> dictionariesEnabled() const {
-		return _variables.dictionariesEnabled.current();
-	}
-
-	rpl::producer<std::vector<int>> dictionariesEnabledChanges() const {
-		return _variables.dictionariesEnabled.changes();
-	}
-
-	void setAutoDownloadDictionaries(bool value) {
-		_variables.autoDownloadDictionaries = value;
-	}
-	bool autoDownloadDictionaries() const {
-		return _variables.autoDownloadDictionaries.current();
-	}
-	rpl::producer<bool> autoDownloadDictionariesValue() const {
-		return _variables.autoDownloadDictionaries.value();
-	}
-	rpl::producer<bool> autoDownloadDictionariesChanges() const {
-		return _variables.autoDownloadDictionaries.changes();
-	}
-
-	[[nodiscard]] float64 videoPlaybackSpeed() const {
-		return _variables.videoPlaybackSpeed.current();
-	}
-	void setVideoPlaybackSpeed(float64 speed) {
-		_variables.videoPlaybackSpeed = speed;
-	}
-	[[nodiscard]] QByteArray videoPipGeometry() const {
-		return _variables.videoPipGeometry;
-	}
-	void setVideoPipGeometry(QByteArray geometry) {
-		_variables.videoPipGeometry = geometry;
+		return _hadLegacyCallsPeerToPeerNobody;
 	}
 
 	[[nodiscard]] MsgId hiddenPinnedMessageId(PeerId peerId) const {
-		const auto i = _variables.hiddenPinnedMessages.find(peerId);
-		return (i != end(_variables.hiddenPinnedMessages)) ? i->second : 0;
+		const auto i = _hiddenPinnedMessages.find(peerId);
+		return (i != end(_hiddenPinnedMessages)) ? i->second : 0;
 	}
 	void setHiddenPinnedMessageId(PeerId peerId, MsgId msgId) {
 		if (msgId) {
-			_variables.hiddenPinnedMessages[peerId] = msgId;
+			_hiddenPinnedMessages[peerId] = msgId;
 		} else {
-			_variables.hiddenPinnedMessages.remove(peerId);
+			_hiddenPinnedMessages.remove(peerId);
 		}
 	}
 
+	[[nodiscard]] bool dialogsFiltersEnabled() const {
+		return _dialogsFiltersEnabled;
+	}
+	void setDialogsFiltersEnabled(bool value) {
+		_dialogsFiltersEnabled = value;
+	}
+
 	[[nodiscard]] static bool ThirdColumnByDefault();
 
 private:
-	struct Variables {
-		Variables();
+	static constexpr auto kDefaultDialogsWidthRatio = 5. / 14;
+	static constexpr auto kDefaultBigDialogsWidthRatio = 0.275;
+	static constexpr auto kDefaultThirdColumnWidth = 0;
+	static constexpr auto kDefaultSupportChatsLimitSlice = 7 * 24 * 60 * 60;
 
-		static constexpr auto kDefaultDialogsWidthRatio = 5. / 14;
-		static constexpr auto kDefaultBigDialogsWidthRatio = 0.275;
-		static constexpr auto kDefaultThirdColumnWidth = 0;
+	ChatHelpers::SelectorTab _selectorTab; // per-window
+	bool _tabbedSelectorSectionEnabled = false; // per-window
+	Window::Column _floatPlayerColumn; // per-window
+	RectPart _floatPlayerCorner; // per-window
+	base::flat_set<PeerId> _groupStickersSectionHidden;
+	bool _thirdSectionInfoEnabled = true; // per-window
+	bool _smallDialogsList = false; // per-window
+	int _thirdSectionExtendedBy = -1; // per-window
+	rpl::variable<float64> _dialogsWidthRatio; // per-window
+	rpl::variable<int> _thirdColumnWidth = kDefaultThirdColumnWidth; // p-w
+	bool _hadLegacyCallsPeerToPeerNobody = false;
+	Data::AutoDownload::Full _autoDownload;
+	rpl::variable<bool> _archiveCollapsed = false;
+	rpl::variable<bool> _archiveInMainMenu = false;
+	rpl::variable<bool> _skipArchiveInSearch = false;
+	std::vector<std::pair<DocumentId, crl::time>> _mediaLastPlaybackPosition;
+	base::flat_map<PeerId, MsgId> _hiddenPinnedMessages;
+	bool _dialogsFiltersEnabled = false;
 
-		bool lastSeenWarningSeen = false;
-		SendFilesWay sendFilesWay;
-		ChatHelpers::SelectorTab selectorTab; // per-window
-		bool tabbedSelectorSectionEnabled = false; // per-window
-		int tabbedSelectorSectionTooltipShown = 0;
-		base::flat_map<QString, QString> soundOverrides;
-		Window::Column floatPlayerColumn; // per-window
-		RectPart floatPlayerCorner; // per-window
-		base::flat_set<PeerId> groupStickersSectionHidden;
-		bool thirdSectionInfoEnabled = true; // per-window
-		bool smallDialogsList = false; // per-window
-		int thirdSectionExtendedBy = -1; // per-window
-		rpl::variable<float64> dialogsWidthRatio; // per-window
-		rpl::variable<int> thirdColumnWidth
-			= kDefaultThirdColumnWidth; // per-window
-		Ui::InputSubmitSettings sendSubmitWay;
-		bool hadLegacyCallsPeerToPeerNobody = false;
-		bool includeMutedCounter = true;
-		bool countUnreadMessages = true;
-		bool exeLaunchWarning = true;
-		Data::AutoDownload::Full autoDownload;
-		rpl::variable<bool> archiveCollapsed = false;
-		rpl::variable<bool> archiveInMainMenu = false;
-		rpl::variable<bool> notifyAboutPinned = true;
-		rpl::variable<bool> skipArchiveInSearch = false;
-		bool loopAnimatedStickers = true;
-		rpl::variable<bool> largeEmoji = true;
-		rpl::variable<bool> replaceEmoji = true;
-		bool suggestEmoji = true;
-		bool suggestStickersByEmoji = true;
-		rpl::variable<bool> spellcheckerEnabled = true;
-		std::vector<std::pair<DocumentId, crl::time>> mediaLastPlaybackPosition;
-		rpl::variable<float64> videoPlaybackSpeed = 1.;
-		QByteArray videoPipGeometry;
-		rpl::variable<std::vector<int>> dictionariesEnabled;
-		rpl::variable<bool> autoDownloadDictionaries = true;
-		base::flat_map<PeerId, MsgId> hiddenPinnedMessages;
-
-		static constexpr auto kDefaultSupportChatsLimitSlice
-			= 7 * 24 * 60 * 60;
-
-		Support::SwitchSettings supportSwitch;
-		bool supportFixChatsOrder = true;
-		bool supportTemplatesAutocomplete = true;
-		rpl::variable<int> supportChatsTimeSlice
-			= kDefaultSupportChatsLimitSlice;
-		rpl::variable<bool> supportAllSearchResults = false;
-	};
+	Support::SwitchSettings _supportSwitch;
+	bool _supportFixChatsOrder = true;
+	bool _supportTemplatesAutocomplete = true;
+	rpl::variable<int> _supportChatsTimeSlice
+		= kDefaultSupportChatsLimitSlice;
+	rpl::variable<bool> _supportAllSearchResults = false;
 
 	rpl::event_stream<bool> _thirdSectionInfoEnabledValue;
 	bool _tabbedReplacedWithInfo = false;
 	rpl::event_stream<bool> _tabbedReplacedWithInfoValue;
 
-	Variables _variables;
-
 };
 
 } // namespace Main
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index e1cda0e61..69758b310 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -872,7 +872,7 @@ bool MainWidget::insertBotCommand(const QString &cmd) {
 void MainWidget::searchMessages(const QString &query, Dialogs::Key inChat) {
 	_dialogs->searchMessages(query, inChat);
 	if (Adaptive::OneColumn()) {
-		Ui::showChatsList();
+		Ui::showChatsList(&session());
 	} else {
 		_dialogs->setInnerFocus();
 	}
@@ -1353,8 +1353,10 @@ void MainWidget::viewsIncrementFail(const RPCError &error, mtpRequestId requestI
 void MainWidget::choosePeer(PeerId peerId, MsgId showAtMsgId) {
 	if (selectingPeer()) {
 		_hider->offerPeer(peerId);
+	} else if (peerId) {
+		Ui::showPeerHistory(session().data().peer(peerId), showAtMsgId);
 	} else {
-		Ui::showPeerHistory(peerId, showAtMsgId);
+		Ui::showChatsList(&session());
 	}
 }
 
@@ -2570,7 +2572,7 @@ void MainWidget::searchInChat(Dialogs::Key chat) {
 	}
 	_dialogs->searchInChat(chat);
 	if (Adaptive::OneColumn()) {
-		Ui::showChatsList();
+		Ui::showChatsList(&session());
 	} else {
 		_dialogs->setInnerFocus();
 	}
diff --git a/Telegram/SourceFiles/mainwindow.cpp b/Telegram/SourceFiles/mainwindow.cpp
index 403c6ad50..567153b14 100644
--- a/Telegram/SourceFiles/mainwindow.cpp
+++ b/Telegram/SourceFiles/mainwindow.cpp
@@ -133,7 +133,7 @@ void MainWindow::createTrayIconMenu() {
 	trayIconMenu = new QMenu(this);
 #endif // else for Q_OS_WIN
 
-	auto notificationActionText = Global::DesktopNotify()
+	auto notificationActionText = Core::App().settings().desktopNotify()
 		? tr::lng_disable_notifications_from_tray(tr::now)
 		: tr::lng_enable_notifications_from_tray(tr::now);
 
@@ -620,7 +620,7 @@ void MainWindow::updateTrayMenu(bool force) {
 			: tr::lng_open_from_tray(tr::now));
 	}
 	auto notificationAction = actions.at(Platform::IsLinux() && !Platform::IsWayland() ? 2 : 1);
-	auto notificationActionText = Global::DesktopNotify()
+	auto notificationActionText = Core::App().settings().desktopNotify()
 		? tr::lng_disable_notifications_from_tray(tr::now)
 		: tr::lng_enable_notifications_from_tray(tr::now);
 	notificationAction->setText(notificationActionText);
@@ -781,33 +781,35 @@ void MainWindow::toggleDisplayNotifyFromTray() {
 
 	auto soundNotifyChanged = false;
 	auto flashBounceNotifyChanged = false;
-	Global::SetDesktopNotify(!Global::DesktopNotify());
-	if (Global::DesktopNotify()) {
-		if (Global::RestoreSoundNotifyFromTray() && !Global::SoundNotify()) {
-			Global::SetSoundNotify(true);
-			Global::SetRestoreSoundNotifyFromTray(false);
+	auto &settings = Core::App().settings();
+	settings.setDesktopNotify(!settings.desktopNotify());
+	if (settings.desktopNotify()) {
+		if (settings.rememberedSoundNotifyFromTray()
+			&& !settings.soundNotify()) {
+			settings.setSoundNotify(true);
+			settings.setRememberedSoundNotifyFromTray(false);
 			soundNotifyChanged = true;
 		}
-		if (Global::RestoreFlashBounceNotifyFromTray()
-			&& !Global::FlashBounceNotify()) {
-			Global::SetFlashBounceNotify(true);
-			Global::SetRestoreFlashBounceNotifyFromTray(false);
+		if (settings.rememberedFlashBounceNotifyFromTray()
+			&& !settings.flashBounceNotify()) {
+			settings.setFlashBounceNotify(true);
+			settings.setRememberedFlashBounceNotifyFromTray(false);
 			flashBounceNotifyChanged = true;
 		}
 	} else {
-		if (Global::SoundNotify()) {
-			Global::SetSoundNotify(false);
-			Global::SetRestoreSoundNotifyFromTray(true);
+		if (settings.soundNotify()) {
+			settings.setSoundNotify(false);
+			settings.setRememberedSoundNotifyFromTray(true);
 			soundNotifyChanged = true;
 		} else {
-			Global::SetRestoreSoundNotifyFromTray(false);
+			settings.setRememberedSoundNotifyFromTray(false);
 		}
-		if (Global::FlashBounceNotify()) {
-			Global::SetFlashBounceNotify(false);
-			Global::SetRestoreFlashBounceNotifyFromTray(true);
+		if (settings.flashBounceNotify()) {
+			settings.setFlashBounceNotify(false);
+			settings.setRememberedFlashBounceNotifyFromTray(true);
 			flashBounceNotifyChanged = true;
 		} else {
-			Global::SetRestoreFlashBounceNotifyFromTray(false);
+			settings.setRememberedFlashBounceNotifyFromTray(false);
 		}
 	}
 	account().session().saveSettings();
diff --git a/Telegram/SourceFiles/media/audio/media_audio.cpp b/Telegram/SourceFiles/media/audio/media_audio.cpp
index 9a86955bd..473bf691c 100644
--- a/Telegram/SourceFiles/media/audio/media_audio.cpp
+++ b/Telegram/SourceFiles/media/audio/media_audio.cpp
@@ -18,7 +18,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "platform/platform_audio.h"
 #include "core/application.h"
 #include "main/main_session.h"
-#include "facades.h"
 #include "app.h"
 
 #include <al.h>
@@ -575,12 +574,17 @@ Mixer::Mixer(not_null<Audio::Instance*> instance)
 	connect(this, SIGNAL(suppressSong()), _fader, SLOT(onSuppressSong()));
 	connect(this, SIGNAL(unsuppressSong()), _fader, SLOT(onUnsuppressSong()));
 	connect(this, SIGNAL(suppressAll(qint64)), _fader, SLOT(onSuppressAll(qint64)));
-	subscribe(Global::RefSongVolumeChanged(), [this] {
+
+	Core::App().settings().songVolumeChanges(
+	) | rpl::start_with_next([=] {
 		QMetaObject::invokeMethod(_fader, "onSongVolumeChanged");
-	});
-	subscribe(Global::RefVideoVolumeChanged(), [this] {
+	}, _lifetime);
+
+	Core::App().settings().videoVolumeChanges(
+	) | rpl::start_with_next([=] {
 		QMetaObject::invokeMethod(_fader, "onVideoVolumeChanged");
-	});
+	}, _lifetime);
+
 	connect(this, SIGNAL(loaderOnStart(const AudioMsgId&, qint64)), _loader, SLOT(onStart(const AudioMsgId&, qint64)));
 	connect(this, SIGNAL(loaderOnCancel(const AudioMsgId&)), _loader, SLOT(onCancel(const AudioMsgId&)));
 	connect(_loader, SIGNAL(needToCheck()), _fader, SLOT(onTimer()));
@@ -756,8 +760,8 @@ void Mixer::play(
 	Expects(externalData != nullptr);
 	Expects(audio.externalPlayId() != 0);
 
-	setSongVolume(Global::SongVolume());
-	setVideoVolume(Global::VideoVolume());
+	setSongVolume(Core::App().settings().songVolume());
+	setVideoVolume(Core::App().settings().videoVolume());
 
 	auto type = audio.type();
 	AudioMsgId stopped;
diff --git a/Telegram/SourceFiles/media/audio/media_audio.h b/Telegram/SourceFiles/media/audio/media_audio.h
index 83bbbb568..57bbaa01e 100644
--- a/Telegram/SourceFiles/media/audio/media_audio.h
+++ b/Telegram/SourceFiles/media/audio/media_audio.h
@@ -126,7 +126,7 @@ struct TrackState {
 	bool waitingForData = false;
 };
 
-class Mixer : public QObject, private base::Subscriber {
+class Mixer final : public QObject {
 	Q_OBJECT
 
 public:
@@ -296,6 +296,8 @@ private:
 	Fader *_fader;
 	Loaders *_loader;
 
+	rpl::lifetime _lifetime;
+
 };
 
 Mixer *mixer();
diff --git a/Telegram/SourceFiles/media/player/media_player_instance.cpp b/Telegram/SourceFiles/media/player/media_player_instance.cpp
index a793d1b86..7514e2084 100644
--- a/Telegram/SourceFiles/media/player/media_player_instance.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_instance.cpp
@@ -23,11 +23,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_session_controller.h"
 #include "core/shortcuts.h"
 #include "core/application.h"
-#include "main/main_accounts.h" // Accounts::activeSessionValue.
+#include "main/main_domain.h" // Domain::activeSessionValue.
 #include "mainwindow.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
-#include "facades.h"
 
 namespace Media {
 namespace Player {
@@ -115,7 +114,7 @@ Instance::Instance()
 	});
 
 	// While we have one Media::Player::Instance for all sessions we have to do this.
-	Core::App().accounts().activeSessionValue(
+	Core::App().domain().activeSessionValue(
 	) | rpl::start_with_next([=](Main::Session *session) {
 		if (session) {
 			subscribe(session->calls().currentCallChanged(), [=](Calls::Call *call) {
@@ -449,7 +448,7 @@ Streaming::PlaybackOptions Instance::streamingOptions(
 		: Streaming::Mode::Audio;
 	result.speed = (document
 		&& (document->isVoiceMessage() || document->isVideoMessage())
-		&& Global::VoiceMsgPlaybackDoubled())
+		&& Core::App().settings().voiceMsgPlaybackDoubled())
 		? kVoicePlaybackSpeedMultiplier
 		: 1.;
 	result.audioId = audioId;
@@ -599,7 +598,7 @@ void Instance::cancelSeeking(AudioMsgId::Type type) {
 void Instance::updateVoicePlaybackSpeed() {
 	if (const auto data = getData(AudioMsgId::Type::Voice)) {
 		if (const auto streamed = data->streamed.get()) {
-			streamed->instance.setSpeed(Global::VoiceMsgPlaybackDoubled()
+			streamed->instance.setSpeed(Core::App().settings().voiceMsgPlaybackDoubled()
 				? kVoicePlaybackSpeedMultiplier
 				: 1.);
 		}
diff --git a/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp b/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
index 6ebfeb77c..135453ba5 100644
--- a/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
@@ -16,7 +16,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "main/main_session.h"
 #include "window/window_session_controller.h"
-#include "facades.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "app.h"
 #include "styles/style_media_player.h"
 #include "styles/style_widgets.h"
@@ -27,7 +28,7 @@ namespace Player {
 VolumeController::VolumeController(
 	QWidget *parent,
 	not_null<Window::SessionController*> controller)
-: TWidget(parent)
+: RpWidget(parent)
 , _slider(this, st::mediaPlayerPanelPlayback) {
 	_slider->setMoveByWheel(true);
 	_slider->setChangeProgressCallback([=](float64 volume) {
@@ -35,17 +36,18 @@ VolumeController::VolumeController(
 	});
 	_slider->setChangeFinishedCallback([=](float64 volume) {
 		if (volume > 0) {
-			Global::SetRememberedSongVolume(volume);
+			Core::App().settings().setRememberedSongVolume(volume);
 		}
 		applyVolumeChange(volume);
 		controller->session().saveSettingsDelayed();
 	});
-	subscribe(Global::RefSongVolumeChanged(), [this] {
+	Core::App().settings().songVolumeChanges(
+	) | rpl::start_with_next([=](float64 volume) {
 		if (!_slider->isChanging()) {
-			_slider->setValue(Global::SongVolume());
+			_slider->setValue(volume);
 		}
-	});
-	setVolume(Global::SongVolume());
+	}, lifetime());
+	setVolume(Core::App().settings().songVolume());
 
 	resize(st::mediaPlayerPanelVolumeWidth, 2 * st::mediaPlayerPanelPlaybackPadding + st::mediaPlayerPanelPlayback.width);
 }
@@ -63,16 +65,15 @@ void VolumeController::resizeEvent(QResizeEvent *e) {
 void VolumeController::setVolume(float64 volume) {
 	_slider->setValue(volume);
 	if (volume > 0) {
-		Global::SetRememberedSongVolume(volume);
+		Core::App().settings().setRememberedSongVolume(volume);
 	}
 	applyVolumeChange(volume);
 }
 
 void VolumeController::applyVolumeChange(float64 volume) {
-	if (volume != Global::SongVolume()) {
-		Global::SetSongVolume(volume);
-		mixer()->setSongVolume(Global::SongVolume());
-		Global::RefSongVolumeChanged().notify();
+	if (volume != Core::App().settings().songVolume()) {
+		Core::App().settings().setSongVolume(volume);
+		mixer()->setSongVolume(Core::App().settings().songVolume());
 	}
 }
 
diff --git a/Telegram/SourceFiles/media/player/media_player_volume_controller.h b/Telegram/SourceFiles/media/player/media_player_volume_controller.h
index f45223523..95ea84179 100644
--- a/Telegram/SourceFiles/media/player/media_player_volume_controller.h
+++ b/Telegram/SourceFiles/media/player/media_player_volume_controller.h
@@ -25,7 +25,7 @@ class SessionController;
 namespace Media {
 namespace Player {
 
-class VolumeController : public TWidget, private base::Subscriber {
+class VolumeController : public Ui::RpWidget, private base::Subscriber {
 public:
 	VolumeController(
 		QWidget *parent,
diff --git a/Telegram/SourceFiles/media/player/media_player_widget.cpp b/Telegram/SourceFiles/media/player/media_player_widget.cpp
index c904233f7..0bc26ebf4 100644
--- a/Telegram/SourceFiles/media/player/media_player_widget.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_widget.cpp
@@ -11,6 +11,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_document.h"
 #include "data/data_session.h"
 #include "data/data_peer.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "ui/widgets/labels.h"
 #include "ui/widgets/continuous_sliders.h"
 #include "ui/widgets/shadow.h"
@@ -126,11 +128,16 @@ Widget::Widget(QWidget *parent, not_null<Main::Session*> session)
 
 	updateVolumeToggleIcon();
 	_volumeToggle->setClickedCallback([=] {
-		Global::SetSongVolume((Global::SongVolume() > 0) ? 0. : Global::RememberedSongVolume());
-		mixer()->setSongVolume(Global::SongVolume());
-		Global::RefSongVolumeChanged().notify();
+		const auto volume = (Core::App().settings().songVolume() > 0)
+			? 0.
+			: Core::App().settings().rememberedSongVolume();
+		Core::App().settings().setSongVolume(volume);
+		mixer()->setSongVolume(volume);
 	});
-	subscribe(Global::RefSongVolumeChanged(), [this] { updateVolumeToggleIcon(); });
+	Core::App().settings().songVolumeChanges(
+	) | rpl::start_with_next([=] {
+		updateVolumeToggleIcon();
+	}, lifetime());
 
 	updateRepeatTrackIcon();
 	_repeatTrack->setClickedCallback([=] {
@@ -139,11 +146,11 @@ Widget::Widget(QWidget *parent, not_null<Main::Session*> session)
 
 	updatePlaybackSpeedIcon();
 	_playbackSpeed->setClickedCallback([=] {
-		const auto doubled = !Global::VoiceMsgPlaybackDoubled();
-		Global::SetVoiceMsgPlaybackDoubled(doubled);
+		const auto doubled = !Core::App().settings().voiceMsgPlaybackDoubled();
+		Core::App().settings().setVoiceMsgPlaybackDoubled(doubled);
 		instance()->updateVoicePlaybackSpeed();
 		updatePlaybackSpeedIcon();
-		_session->saveSettings();
+		Core::App().saveSettingsDelayed();
 	});
 
 	subscribe(instance()->repeatChangedNotifier(), [this](AudioMsgId::Type type) {
@@ -178,7 +185,7 @@ Widget::Widget(QWidget *parent, not_null<Main::Session*> session)
 
 void Widget::updateVolumeToggleIcon() {
 	auto icon = []() -> const style::icon * {
-		auto volume = Global::SongVolume();
+		auto volume = Core::App().settings().songVolume();
 		if (volume > 0) {
 			if (volume < 1 / 3.) {
 				return &st::mediaPlayerVolumeIcon1;
@@ -385,7 +392,7 @@ void Widget::updateRepeatTrackIcon() {
 }
 
 void Widget::updatePlaybackSpeedIcon() {
-	const auto doubled = Global::VoiceMsgPlaybackDoubled();
+	const auto doubled = Core::App().settings().voiceMsgPlaybackDoubled();
 	const auto isDefaultSpeed = !doubled;
 	_playbackSpeed->setIconOverride(
 		isDefaultSpeed ? &st::mediaPlayerSpeedDisabledIcon : nullptr,
diff --git a/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp b/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
index bc2842418..76cd24a4d 100644
--- a/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
+++ b/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
@@ -49,7 +49,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/base_platform_info.h"
 #include "base/unixtime.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h" // Accounts::activeSessionValue.
+#include "main/main_domain.h" // Domain::activeSessionValue.
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
 #include "layout.h"
@@ -108,16 +108,16 @@ PipDelegate::PipDelegate(QWidget *parent, not_null<Main::Session*> session)
 }
 
 void PipDelegate::pipSaveGeometry(QByteArray geometry) {
-	_session->settings().setVideoPipGeometry(geometry);
-	_session->saveSettingsDelayed();
+	Core::App().settings().setVideoPipGeometry(geometry);
+	Core::App().saveSettingsDelayed();
 }
 
 QByteArray PipDelegate::pipLoadGeometry() {
-	return _session->settings().videoPipGeometry();
+	return Core::App().settings().videoPipGeometry();
 }
 
 float64 PipDelegate::pipPlaybackSpeed() {
-	return _session->settings().videoPlaybackSpeed();
+	return Core::App().settings().videoPlaybackSpeed();
 }
 
 QWidget *PipDelegate::pipParentWidget() {
@@ -301,9 +301,9 @@ OverlayWidget::OverlayWidget()
 , _dropdownShowTimer(this) {
 	subscribe(Lang::Current().updated(), [this] { refreshLang(); });
 
-	_lastPositiveVolume = (Global::VideoVolume() > 0.)
-		? Global::VideoVolume()
-		: Global::kDefaultVolume;
+	_lastPositiveVolume = (Core::App().settings().videoVolume() > 0.)
+		? Core::App().settings().videoVolume()
+		: Core::Settings::kDefaultVolume;
 
 	setWindowTitle(qsl("Media viewer"));
 
@@ -320,7 +320,7 @@ OverlayWidget::OverlayWidget()
 	connect(QApplication::desktop(), SIGNAL(resized(int)), this, SLOT(onScreenResized(int)));
 
 	// While we have one mediaview for all sessions we have to do this.
-	Core::App().accounts().activeSessionValue(
+	Core::App().domain().activeSessionValue(
 	) | rpl::start_with_next([=](Main::Session *session) {
 		if (!isHidden()) {
 			close();
@@ -1157,7 +1157,7 @@ void OverlayWidget::showSaveMsgFile() {
 
 void OverlayWidget::updateMixerVideoVolume() const {
 	if (_streamed) {
-		Player::mixer()->setVideoVolume(Global::VideoVolume());
+		Player::mixer()->setVideoVolume(Core::App().settings().videoVolume());
 	}
 }
 
@@ -1358,18 +1358,18 @@ void OverlayWidget::onDownload() {
 	if (!_photo && !_document) {
 		return;
 	}
-	if (Global::AskDownloadPath()) {
+	if (Core::App().settings().askDownloadPath()) {
 		return onSaveAs();
 	}
 
 	QString path;
 	const auto session = _photo ? &_photo->session() : &_document->session();
-	if (Global::DownloadPath().isEmpty()) {
+	if (Core::App().settings().downloadPath().isEmpty()) {
 		path = File::DefaultDownloadPath(session);
-	} else if (Global::DownloadPath() == qsl("tmp")) {
+	} else if (Core::App().settings().downloadPath() == qsl("tmp")) {
 		path = cTempDir();
 	} else {
-		path = Global::DownloadPath();
+		path = Core::App().settings().downloadPath();
 	}
 	QString toName;
 	if (_document) {
@@ -2629,7 +2629,7 @@ void OverlayWidget::restartAtSeekPosition(crl::time position) {
 		options.mode = Streaming::Mode::Video;
 		options.loop = true;
 	} else {
-		options.speed = _document->session().settings().videoPlaybackSpeed();
+		options.speed = Core::App().settings().videoPlaybackSpeed();
 		if (_pip) {
 			_pip = nullptr;
 		}
@@ -2664,25 +2664,24 @@ void OverlayWidget::playbackControlsSeekFinished(crl::time position) {
 }
 
 void OverlayWidget::playbackControlsVolumeChanged(float64 volume) {
-	Global::SetVideoVolume(volume);
+	Core::App().settings().setVideoVolume(volume);
 	updateMixerVideoVolume();
-	Global::RefVideoVolumeChanged().notify();
 	if (_document) {
 		_document->session().saveSettingsDelayed();
 	}
 }
 
 float64 OverlayWidget::playbackControlsCurrentVolume() {
-	return Global::VideoVolume();
+	return Core::App().settings().videoVolume();
 }
 
 void OverlayWidget::playbackControlsVolumeToggled() {
-	const auto volume = Global::VideoVolume();
+	const auto volume = Core::App().settings().videoVolume();
 	playbackControlsVolumeChanged(volume ? 0. : _lastPositiveVolume);
 }
 
 void OverlayWidget::playbackControlsVolumeChangeFinished() {
-	const auto volume = Global::VideoVolume();
+	const auto volume = Core::App().settings().videoVolume();
 	if (volume > 0.) {
 		_lastPositiveVolume = volume;
 	}
@@ -2692,8 +2691,8 @@ void OverlayWidget::playbackControlsSpeedChanged(float64 speed) {
 	DEBUG_LOG(("Media playback speed: change to %1.").arg(speed));
 	if (_document) {
 		DEBUG_LOG(("Media playback speed: %1 to settings.").arg(speed));
-		_document->session().settings().setVideoPlaybackSpeed(speed);
-		_document->session().saveSettingsDelayed();
+		Core::App().settings().setVideoPlaybackSpeed(speed);
+		Core::App().saveSettingsDelayed();
 	}
 	if (_streamed && !videoIsGifv()) {
 		DEBUG_LOG(("Media playback speed: %1 to _streamed.").arg(speed));
@@ -2702,12 +2701,8 @@ void OverlayWidget::playbackControlsSpeedChanged(float64 speed) {
 }
 
 float64 OverlayWidget::playbackControlsCurrentSpeed() {
-	const auto result = _document
-		? _document->session().settings().videoPlaybackSpeed()
-		: 1.;
-	DEBUG_LOG(("Media playback speed: now %1 (doc %2)."
-		).arg(result
-		).arg(Logs::b(_document != nullptr)));
+	const auto result = Core::App().settings().videoPlaybackSpeed();
+	DEBUG_LOG(("Media playback speed: now %1.").arg(result));
 	return result;
 }
 
diff --git a/Telegram/SourceFiles/mtproto/mtp_instance.cpp b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
index 1b6de5a6d..b2461cc10 100644
--- a/Telegram/SourceFiles/mtproto/mtp_instance.cpp
+++ b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
@@ -855,7 +855,6 @@ void Instance::Private::configLoadDone(const MTPConfig &result) {
 	if (const auto prefix = data.vautoupdate_url_prefix()) {
 		Local::writeAutoupdatePrefix(qs(*prefix));
 	}
-	Local::writeSettings();
 
 	_configExpiresAt = crl::now()
 		+ (data.vexpires().v - base::unixtime::now()) * crl::time(1000);
diff --git a/Telegram/SourceFiles/mtproto/special_config_request.cpp b/Telegram/SourceFiles/mtproto/special_config_request.cpp
index ab8bd0c6a..0d99e881c 100644
--- a/Telegram/SourceFiles/mtproto/special_config_request.cpp
+++ b/Telegram/SourceFiles/mtproto/special_config_request.cpp
@@ -13,7 +13,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/unixtime.h"
 #include "base/openssl_help.h"
 #include "base/call_delayed.h"
-#include "facades.h"
 
 #include <QtCore/QJsonDocument>
 #include <QtCore/QJsonArray>
diff --git a/Telegram/SourceFiles/platform/linux/file_utilities_linux.cpp b/Telegram/SourceFiles/platform/linux/file_utilities_linux.cpp
index 01dcc27c3..fe81c30a4 100644
--- a/Telegram/SourceFiles/platform/linux/file_utilities_linux.cpp
+++ b/Telegram/SourceFiles/platform/linux/file_utilities_linux.cpp
@@ -17,7 +17,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/localstorage.h"
 #include "base/platform/base_platform_file_utilities.h"
 #include "base/call_delayed.h"
-#include "facades.h"
 
 #include <QtCore/QProcess>
 #include <QtGui/QDesktopServices>
diff --git a/Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp b/Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp
index 51ee31a92..ddb381bef 100644
--- a/Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp
+++ b/Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp
@@ -11,9 +11,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #ifndef TDESKTOP_DISABLE_DBUS_INTEGRATION
 #include "base/platform/base_platform_info.h"
 #include "platform/linux/specific_linux.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "history/history.h"
 #include "lang/lang_keys.h"
-#include "facades.h"
 
 #include <QtCore/QVersionNumber>
 #include <QtDBus/QDBusMessage>
@@ -71,7 +72,8 @@ void GetSupported() {
 	}
 	Checked = true;
 
-	if (Global::NativeNotifications() && !Platform::IsWayland()) {
+	if (Core::App().settings().nativeNotifications()
+		&& !Platform::IsWayland()) {
 		ComputeSupported(true);
 	} else {
 		ComputeSupported();
@@ -271,7 +273,7 @@ NotificationData::NotificationData(
 
 	// suppress system sound if telegram sound activated, otherwise use system sound
 	if (capabilities.contains(qsl("sound"))) {
-		if (Global::SoundNotify()) {
+		if (Core::App().settings().soundNotify()) {
 			_hints["suppress-sound"] = true;
 		} else {
 			// sound name according to http://0pointer.de/public/sound-naming-spec.html
@@ -475,7 +477,7 @@ std::unique_ptr<Window::Notifications::Manager> Create(
 #ifndef TDESKTOP_DISABLE_DBUS_INTEGRATION
 	GetSupported();
 
-	if ((Global::NativeNotifications() && Supported())
+	if ((Core::App().settings().nativeNotifications() && Supported())
 		|| Platform::IsWayland()) {
 		return std::make_unique<Manager>(system);
 	}
diff --git a/Telegram/SourceFiles/platform/mac/main_window_mac.mm b/Telegram/SourceFiles/platform/mac/main_window_mac.mm
index 4a3f2ec62..f806ea53d 100644
--- a/Telegram/SourceFiles/platform/mac/main_window_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/main_window_mac.mm
@@ -18,7 +18,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_widget.h"
 #include "history/history_inner_widget.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h" // Accounts::activeSessionValue
+#include "main/main_domain.h" // Domain::activeSessionValue
 #include "media/player/media_player_instance.h"
 #include "media/audio/media_audio.h"
 #include "storage/localstorage.h"
@@ -196,7 +196,7 @@ private:
 }
 
 - (void) darkModeChanged:(NSNotification *)aNotification {
-	Core::App().accounts().notifyUnreadBadgeChanged();
+	Core::App().domain().notifyUnreadBadgeChanged();
 }
 
 - (void) screenIsLocked:(NSNotification *)aNotification {
@@ -478,7 +478,7 @@ void MainWindow::initTouchBar() {
 		return;
 	}
 
-	Core::App().accounts().activeSessionValue(
+	Core::App().domain().activeSessionValue(
 	) | rpl::start_with_next([=](Main::Session *session) {
 		if (session) {
 			// We need only common pinned dialogs.
diff --git a/Telegram/SourceFiles/platform/mac/specific_mac_p.mm b/Telegram/SourceFiles/platform/mac/specific_mac_p.mm
index 1c24cb1d7..27f27a088 100644
--- a/Telegram/SourceFiles/platform/mac/specific_mac_p.mm
+++ b/Telegram/SourceFiles/platform/mac/specific_mac_p.mm
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwidget.h"
 #include "core/sandbox.h"
 #include "core/application.h"
+#include "core/core_settings.h"
 #include "core/crash_reports.h"
 #include "storage/localstorage.h"
 #include "media/audio/media_audio.h"
@@ -19,7 +20,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/base_platform_info.h"
 #include "lang/lang_keys.h"
 #include "base/timer.h"
-#include "facades.h"
 #include "styles/style_window.h"
 
 #include <QtGui/QWindow>
@@ -422,12 +422,12 @@ void objc_downloadPathEnableAccess(const QByteArray &bookmark) {
 		}
 		_downloadPathUrl = [url retain];
 
-		Global::SetDownloadPath(NS2QString([_downloadPathUrl path]) + '/');
+		Core::App().settings().setDownloadPath(NS2QString([_downloadPathUrl path]) + '/');
 		if (isStale) {
 			NSData *data = [_downloadPathUrl bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope includingResourceValuesForKeys:nil relativeToURL:nil error:&error];
 			if (data) {
-				Global::SetDownloadPathBookmark(QByteArray::fromNSData(data));
-				Local::writeUserSettings();
+				Core::App().settings().setDownloadPathBookmark(QByteArray::fromNSData(data));
+				Local::writeSettings();
 			}
 		}
 	}
diff --git a/Telegram/SourceFiles/platform/win/main_window_win.cpp b/Telegram/SourceFiles/platform/win/main_window_win.cpp
index 522a4ba92..3b3c0d5bc 100644
--- a/Telegram/SourceFiles/platform/win/main_window_win.cpp
+++ b/Telegram/SourceFiles/platform/win/main_window_win.cpp
@@ -20,7 +20,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/popup_menu.h"
 #include "window/themes/window_theme.h"
 #include "history/history.h"
-#include "facades.h"
 #include "app.h"
 
 #include <QtWidgets/QDesktopWidget>
diff --git a/Telegram/SourceFiles/platform/win/notifications_manager_win.cpp b/Telegram/SourceFiles/platform/win/notifications_manager_win.cpp
index bffb0bae7..a8febba65 100644
--- a/Telegram/SourceFiles/platform/win/notifications_manager_win.cpp
+++ b/Telegram/SourceFiles/platform/win/notifications_manager_win.cpp
@@ -12,8 +12,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "platform/win/windows_event_filter.h"
 #include "platform/win/windows_dlls.h"
 #include "history/history.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "mainwindow.h"
-#include "facades.h"
 
 #include <Shobjidl.h>
 #include <shellapi.h>
@@ -323,7 +324,7 @@ bool Supported() {
 
 std::unique_ptr<Window::Notifications::Manager> Create(Window::Notifications::System *system) {
 #ifndef __MINGW32__
-	if (Global::NativeNotifications() && Supported()) {
+	if (Core::App().settings().nativeNotifications() && Supported()) {
 		auto result = std::make_unique<Manager>(system);
 		if (result->init()) {
 			return std::move(result);
diff --git a/Telegram/SourceFiles/profile/profile_block_group_members.cpp b/Telegram/SourceFiles/profile/profile_block_group_members.cpp
index ab0711376..066787347 100644
--- a/Telegram/SourceFiles/profile/profile_block_group_members.cpp
+++ b/Telegram/SourceFiles/profile/profile_block_group_members.cpp
@@ -92,7 +92,7 @@ void GroupMembersWidget::removePeer(PeerData *selectedPeer) {
 		Ui::hideLayer();
 		if (const auto chat = peer->asChat()) {
 			chat->session().api().kickParticipant(chat, user);
-			Ui::showPeerHistory(chat->id, ShowAtTheEndMsgId);
+			Ui::showPeerHistory(chat, ShowAtTheEndMsgId);
 		} else if (const auto channel = peer->asChannel()) {
 			channel->session().api().kickParticipant(
 				channel,
diff --git a/Telegram/SourceFiles/settings/settings_advanced.cpp b/Telegram/SourceFiles/settings/settings_advanced.cpp
index c91978655..5cd4af457 100644
--- a/Telegram/SourceFiles/settings/settings_advanced.cpp
+++ b/Telegram/SourceFiles/settings/settings_advanced.cpp
@@ -28,7 +28,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_session.h"
 #include "main/main_account.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "mtproto/facade.h"
 #include "layout.h"
 #include "facades.h"
@@ -266,7 +265,7 @@ void SetupSpellchecker(
 		not_null<Ui::VerticalLayout*> container) {
 #ifndef TDESKTOP_DISABLE_SPELLCHECK
 	const auto session = &controller->session();
-	const auto settings = &session->settings();
+	const auto settings = &Core::App().settings();
 	const auto isSystem = Platform::Spellchecker::IsSystemSpellchecker();
 	const auto button = AddButton(
 		container,
@@ -283,7 +282,7 @@ void SetupSpellchecker(
 		return (enabled != settings->spellcheckerEnabled());
 	}) | rpl::start_with_next([=](bool enabled) {
 		settings->setSpellcheckerEnabled(enabled);
-		session->saveSettingsDelayed();
+		Core::App().saveSettingsDelayed();
 	}, container->lifetime());
 
 	if (isSystem) {
@@ -306,7 +305,7 @@ void SetupSpellchecker(
 		return (enabled != settings->autoDownloadDictionaries());
 	}) | rpl::start_with_next([=](bool enabled) {
 		settings->setAutoDownloadDictionaries(enabled);
-		session->saveSettingsDelayed();
+		Core::App().saveSettingsDelayed();
 	}, sliding->entity()->lifetime());
 
 	AddButtonWithLabel(
diff --git a/Telegram/SourceFiles/settings/settings_calls.cpp b/Telegram/SourceFiles/settings/settings_calls.cpp
index a05bc8266..b5cf1d3c1 100644
--- a/Telegram/SourceFiles/settings/settings_calls.cpp
+++ b/Telegram/SourceFiles/settings/settings_calls.cpp
@@ -23,6 +23,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_settings.h"
 #include "ui/widgets/continuous_sliders.h"
 #include "window/window_session_controller.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "calls/calls_instance.h"
 #include "facades.h"
 
@@ -72,32 +74,33 @@ void Calls::setupContent() {
 		return QString::fromStdString(device.displayName);
 	};
 
+	const auto &settings = Core::App().settings();
 	const auto currentOutputName = [&] {
-		if (Global::CallOutputDeviceID() == qsl("default")) {
+		if (settings.callOutputDeviceID() == qsl("default")) {
 			return tr::lng_settings_call_device_default(tr::now);
 		}
 		const auto &list = VoIP::EnumerateAudioOutputs();
 		const auto i = ranges::find(
 			list,
-			Global::CallOutputDeviceID(),
+			settings.callOutputDeviceID(),
 			getId);
 		return (i != end(list))
 			? getName(*i)
-			: Global::CallOutputDeviceID();
+			: settings.callOutputDeviceID();
 	}();
 
 	const auto currentInputName = [&] {
-		if (Global::CallInputDeviceID() == qsl("default")) {
+		if (settings.callInputDeviceID() == qsl("default")) {
 			return tr::lng_settings_call_device_default(tr::now);
 		}
 		const auto &list = VoIP::EnumerateAudioInputs();
 		const auto i = ranges::find(
 			list,
-			Global::CallInputDeviceID(),
+			settings.callInputDeviceID(),
 			getId);
 		return (i != end(list))
 			? getName(*i)
-			: Global::CallInputDeviceID();
+			: settings.callInputDeviceID();
 	}();
 
 	AddSkip(content);
@@ -119,7 +122,7 @@ void Calls::setupContent() {
 		) | ranges::to_vector;
 		const auto i = ranges::find(
 			devices,
-			Global::CallOutputDeviceID(),
+			Core::App().settings().callOutputDeviceID(),
 			getId);
 		const auto currentOption = (i != end(devices))
 			? int(i - begin(devices) + 1)
@@ -129,7 +132,8 @@ void Calls::setupContent() {
 			const auto deviceId = option
 				? devices[option - 1].id
 				: "default";
-			Global::SetCallOutputDeviceID(QString::fromStdString(deviceId));
+			Core::App().settings().setCallOutputDeviceID(
+				QString::fromStdString(deviceId));
 			_controller->session().saveSettingsDelayed();
 			if (const auto call = _controller->session().calls().currentCall()) {
 				call->setCurrentAudioDevice(false, deviceId);
@@ -160,7 +164,7 @@ void Calls::setupContent() {
 	const auto updateOutputVolume = [=](int value) {
 		_needWriteSettings = true;
 		updateOutputLabel(value);
-		Global::SetCallOutputVolume(value);
+		Core::App().settings().setCallOutputVolume(value);
 		if (const auto call = _controller->session().calls().currentCall()) {
 			call->setAudioVolume(false, value / 100.0f);
 		}
@@ -169,9 +173,9 @@ void Calls::setupContent() {
 	outputSlider->setPseudoDiscrete(
 		201,
 		[](int val) { return val; },
-		Global::CallOutputVolume(),
+		settings.callOutputVolume(),
 		updateOutputVolume);
-	updateOutputLabel(Global::CallOutputVolume());
+	updateOutputLabel(Core::App().settings().callOutputVolume());
 
 	AddSkip(content);
 	AddDivider(content);
@@ -194,7 +198,7 @@ void Calls::setupContent() {
 		) | ranges::to_vector;
 		const auto i = ranges::find(
 			devices,
-			Global::CallInputDeviceID(),
+			Core::App().settings().callInputDeviceID(),
 			getId);
 		const auto currentOption = (i != end(devices))
 			? int(i - begin(devices) + 1)
@@ -204,7 +208,8 @@ void Calls::setupContent() {
 			const auto deviceId = option
 				? devices[option - 1].id
 				: "default";
-			Global::SetCallInputDeviceID(QString::fromStdString(deviceId));
+			Core::App().settings().setCallInputDeviceID(
+				QString::fromStdString(deviceId));
 			_controller->session().saveSettingsDelayed();
 			if (_micTester) {
 				stopTestingMicrophone();
@@ -238,7 +243,7 @@ void Calls::setupContent() {
 	const auto updateInputVolume = [=](int value) {
 		_needWriteSettings = true;
 		updateInputLabel(value);
-		Global::SetCallInputVolume(value);
+		Core::App().settings().setCallInputVolume(value);
 		if (const auto call = _controller->session().calls().currentCall()) {
 			call->setAudioVolume(true, value / 100.0f);
 		}
@@ -246,9 +251,9 @@ void Calls::setupContent() {
 	inputSlider->resize(st::settingsAudioVolumeSlider.seekSize);
 	inputSlider->setPseudoDiscrete(101,
 		[](int val) { return val; },
-		Global::CallInputVolume(),
+		settings.callInputVolume(),
 		updateInputVolume);
-	updateInputLabel(Global::CallInputVolume());
+	updateInputLabel(settings.callInputVolume());
 
 	AddButton(
 		content,
@@ -350,7 +355,7 @@ void Calls::startTestingMicrophone() {
 	_micTestTextStream.fire(tr::lng_settings_call_stop_mic_test(tr::now));
 	_levelUpdateTimer.callEach(50);
 	_micTester = std::make_unique<tgvoip::AudioInputTester>(
-		Global::CallInputDeviceID().toStdString());
+		Core::App().settings().callInputDeviceID().toStdString());
 	if (_micTester->Failed()) {
 		stopTestingMicrophone();
 		Ui::show(Box<InformBox>(tr::lng_call_error_audio_io(tr::now)));
diff --git a/Telegram/SourceFiles/settings/settings_chat.cpp b/Telegram/SourceFiles/settings/settings_chat.cpp
index 4478b64fa..0c7b04c07 100644
--- a/Telegram/SourceFiles/settings/settings_chat.cpp
+++ b/Telegram/SourceFiles/settings/settings_chat.cpp
@@ -641,15 +641,6 @@ void ChooseFromFile(
 		crl::guard(parent, callback));
 }
 
-QString DownloadPathText() {
-	if (Global::DownloadPath().isEmpty()) {
-		return tr::lng_download_path_default(tr::now);
-	} else if (Global::DownloadPath() == qsl("tmp")) {
-		return tr::lng_download_path_temp(tr::now);
-	}
-	return QDir::toNativeSeparators(Global::DownloadPath());
-}
-
 void SetupStickersEmoji(
 		not_null<Window::SessionController*> controller,
 		not_null<Ui::VerticalLayout*> container) {
@@ -686,42 +677,42 @@ void SetupStickersEmoji(
 
 	add(
 		tr::lng_settings_large_emoji(tr::now),
-		session->settings().largeEmoji(),
+		Core::App().settings().largeEmoji(),
 		[=](bool checked) {
-			session->settings().setLargeEmoji(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setLargeEmoji(checked);
+			Core::App().saveSettingsDelayed();
 		});
 
 	add(
 		tr::lng_settings_replace_emojis(tr::now),
-		session->settings().replaceEmoji(),
+		Core::App().settings().replaceEmoji(),
 		[=](bool checked) {
-			session->settings().setReplaceEmoji(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setReplaceEmoji(checked);
+			Core::App().saveSettingsDelayed();
 		});
 
 	add(
 		tr::lng_settings_suggest_emoji(tr::now),
-		session->settings().suggestEmoji(),
+		Core::App().settings().suggestEmoji(),
 		[=](bool checked) {
-			session->settings().setSuggestEmoji(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setSuggestEmoji(checked);
+			Core::App().saveSettingsDelayed();
 		});
 
 	add(
 		tr::lng_settings_suggest_by_emoji(tr::now),
-		session->settings().suggestStickersByEmoji(),
+		Core::App().settings().suggestStickersByEmoji(),
 		[=](bool checked) {
-			session->settings().setSuggestStickersByEmoji(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setSuggestStickersByEmoji(checked);
+			Core::App().saveSettingsDelayed();
 		});
 
 	add(
 		tr::lng_settings_loop_stickers(tr::now),
-		session->settings().loopAnimatedStickers(),
+		Core::App().settings().loopAnimatedStickers(),
 		[=](bool checked) {
-			session->settings().setLoopAnimatedStickers(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setLoopAnimatedStickers(checked);
+			Core::App().saveSettingsDelayed();
 		});
 
 	AddButton(
@@ -769,7 +760,7 @@ void SetupMessages(
 			QMargins(0, skip, 0, skip)));
 
 	const auto group = std::make_shared<Ui::RadioenumGroup<SendByType>>(
-		controller->session().settings().sendSubmitWay());
+		Core::App().settings().sendSubmitWay());
 	const auto add = [&](SendByType value, const QString &text) {
 		inner->add(
 			object_ptr<Ui::Radioenum<SendByType>>(
@@ -790,9 +781,9 @@ void SetupMessages(
 			: tr::lng_settings_send_ctrlenter(tr::now)));
 
 	group->setChangedCallback([=](SendByType value) {
-		controller->session().settings().setSendSubmitWay(value);
+		Core::App().settings().setSendSubmitWay(value);
+		Core::App().saveSettingsDelayed();
 		controller->content()->ctrlEnterSubmitUpdated();
-		controller->session().saveSettingsDelayed();
 	});
 
 	AddSkip(inner, st::settingsCheckboxesSkip);
@@ -841,7 +832,7 @@ void SetupDataStorage(
 		container,
 		tr::lng_download_path_ask(),
 		st::settingsButton
-	)->toggleOn(rpl::single(Global::AskDownloadPath()));
+	)->toggleOn(rpl::single(Core::App().settings().askDownloadPath()));
 
 #ifndef OS_WIN_STORE
 	const auto showpath = Ui::CreateChild<rpl::event_stream<bool>>(ask);
@@ -852,12 +843,14 @@ void SetupDataStorage(
 				container,
 				tr::lng_download_path(),
 				st::settingsButton)));
-	auto pathtext = rpl::single(
-		rpl::empty_value()
-	) | rpl::then(base::ObservableViewer(
-		Global::RefDownloadPathChanged()
-	)) | rpl::map([] {
-		return DownloadPathText();
+	auto pathtext = Core::App().settings().downloadPathValue(
+	) | rpl::map([](const QString &text) {
+		if (text.isEmpty()) {
+			return tr::lng_download_path_default(tr::now);
+		} else if (text == qsl("tmp")) {
+			return tr::lng_download_path_temp(tr::now);
+		}
+		return QDir::toNativeSeparators(text);
 	});
 	CreateRightLabel(
 		path->entity(),
@@ -872,10 +865,10 @@ void SetupDataStorage(
 
 	ask->toggledValue(
 	) | rpl::filter([](bool checked) {
-		return (checked != Global::AskDownloadPath());
+		return (checked != Core::App().settings().askDownloadPath());
 	}) | rpl::start_with_next([=](bool checked) {
-		Global::SetAskDownloadPath(checked);
-		controller->session().saveSettingsDelayed();
+		Core::App().settings().setAskDownloadPath(checked);
+		Core::App().saveSettingsDelayed();
 
 #ifndef OS_WIN_STORE
 		showpath->fire_copy(!checked);
@@ -951,7 +944,7 @@ void SetupChatBackground(
 			object_ptr<Ui::Checkbox>(
 				inner,
 				tr::lng_settings_adaptive_wide(tr::now),
-				Global::AdaptiveForWide(),
+				Core::App().settings().adaptiveForWide(),
 				st::settingsCheckbox),
 			st::settingsSendTypePadding));
 
@@ -981,9 +974,9 @@ void SetupChatBackground(
 
 	adaptive->entity()->checkedChanges(
 	) | rpl::start_with_next([=](bool checked) {
-		Global::SetAdaptiveForWide(checked);
+		Core::App().settings().setAdaptiveForWide(checked);
+		Core::App().saveSettingsDelayed();
 		Adaptive::Changed().notify();
-		controller->session().saveSettingsDelayed();
 	}, adaptive->lifetime());
 }
 
diff --git a/Telegram/SourceFiles/settings/settings_codes.cpp b/Telegram/SourceFiles/settings/settings_codes.cpp
index aad82e0d8..f0a3fc972 100644
--- a/Telegram/SourceFiles/settings/settings_codes.cpp
+++ b/Telegram/SourceFiles/settings/settings_codes.cpp
@@ -13,9 +13,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "data/data_session.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "boxes/confirm_box.h"
 #include "lang/lang_cloud_manager.h"
 #include "lang/lang_instance.h"
@@ -30,7 +29,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/audio/media_audio_track.h"
 #include "settings/settings_common.h"
 #include "api/api_updates.h"
-#include "facades.h"
 
 namespace Settings {
 namespace {
@@ -63,13 +61,10 @@ auto GenerateCodes() {
 		Unexpected("Crashed in Settings!");
 	});
 	codes.emplace(qsl("moderate"), [](SessionController *window) {
-		if (!window) {
-			return;
-		}
-		auto text = Global::ModerateModeEnabled() ? qsl("Disable moderate mode?") : qsl("Enable moderate mode?");
+		auto text = Core::App().settings().moderateModeEnabled() ? qsl("Disable moderate mode?") : qsl("Enable moderate mode?");
 		Ui::show(Box<ConfirmBox>(text, [=] {
-			Global::SetModerateModeEnabled(!Global::ModerateModeEnabled());
-			window->session().saveSettingsDelayed();
+			Core::App().settings().setModerateModeEnabled(!Core::App().settings().moderateModeEnabled());
+			Core::App().saveSettingsDelayed();
 			Ui::hideLayer();
 		}));
 	});
@@ -97,7 +92,7 @@ auto GenerateCodes() {
 		}));
 	});
 	codes.emplace(qsl("endpoints"), [](SessionController *window) {
-		if (!Core::App().accounts().started()) {
+		if (!Core::App().domain().started()) {
 			return;
 		}
 		const auto weak = window
@@ -113,7 +108,7 @@ auto GenerateCodes() {
 				if (const auto strong = weak.get()) {
 					loadFor(strong);
 				} else {
-					for (const auto &[index, account] : Core::App().accounts().list()) {
+					for (const auto &[index, account] : Core::App().domain().accounts()) {
 						loadFor(account.get());
 					}
 				}
@@ -130,10 +125,10 @@ auto GenerateCodes() {
 		crl::on_main(&Core::App(), [=] {
 			if (window
 				&& !Core::App().locked()
-				&& Core::App().accounts().started()
-				&& Core::App().accounts().list().size() < 3) {
-				Core::App().accounts().activate(
-					Core::App().accounts().add(MTP::Environment::Production));
+				&& Core::App().domain().started()
+				&& Core::App().domain().accounts().size() < 3) {
+				Core::App().domain().activate(
+					Core::App().domain().add(MTP::Environment::Production));
 			}
 		});
 	});
@@ -142,10 +137,10 @@ auto GenerateCodes() {
 		crl::on_main(&Core::App(), [=] {
 			if (window
 				&& !Core::App().locked()
-				&& Core::App().accounts().started()
-				&& Core::App().accounts().list().size() < 3) {
-				Core::App().accounts().activate(
-					Core::App().accounts().add(MTP::Environment::Test));
+				&& Core::App().domain().started()
+				&& Core::App().domain().accounts().size() < 3) {
+				Core::App().domain().activate(
+					Core::App().domain().add(MTP::Environment::Test));
 			}
 		});
 	});
@@ -154,11 +149,11 @@ auto GenerateCodes() {
 		codes.emplace(qsl("account%1").arg(i + 1), [=](
 				SessionController *window) {
 			crl::on_main(&Core::App(), [=] {
-				const auto &list = Core::App().accounts().list();
+				const auto &list = Core::App().domain().accounts();
 				const auto j = list.find(i);
 				if (j != list.end() && !Core::App().locked()) {
 					if (&Core::App().activeAccount() != j->second.get()) {
-						Core::App().accounts().activate(i);
+						Core::App().domain().activate(i);
 					}
 				}
 			});
@@ -201,34 +196,27 @@ auto GenerateCodes() {
 	};
 	for (auto &key : audioKeys) {
 		codes.emplace(key, [=](SessionController *window) {
-			if (!window) {
-				return;
-			}
-
-			const auto weak = base::make_weak(&window->session());
-			FileDialog::GetOpenPath(Core::App().getFileDialogParent(), "Open audio file", audioFilters, crl::guard(&window->session(), [=](const FileDialog::OpenResult &result) {
-				if (weak && !result.paths.isEmpty()) {
+			FileDialog::GetOpenPath(Core::App().getFileDialogParent(), "Open audio file", audioFilters, [=](const FileDialog::OpenResult &result) {
+				if (!result.paths.isEmpty()) {
 					auto track = Media::Audio::Current().createTrack();
 					track->fillFromFile(result.paths.front());
 					if (track->failed()) {
 						Ui::show(Box<InformBox>(
 							"Could not audio :( Errors in 'log.txt'."));
 					} else {
-						weak->settings().setSoundOverride(
+						Core::App().settings().setSoundOverride(
 							key,
 							result.paths.front());
-						weak->saveSettingsDelayed();
+						Core::App().saveSettingsDelayed();
 					}
 				}
-			}));
+			});
 		});
 	}
 	codes.emplace(qsl("sounds_reset"), [](SessionController *window) {
-		if (window) {
-			window->session().settings().clearSoundOverrides();
-			window->session().saveSettingsDelayed();
-			Ui::show(Box<InformBox>("All sound overrides were reset."));
-		}
+		Core::App().settings().clearSoundOverrides();
+		Core::App().saveSettingsDelayed();
+		Ui::show(Box<InformBox>("All sound overrides were reset."));
 	});
 
 	return codes;
diff --git a/Telegram/SourceFiles/settings/settings_information.cpp b/Telegram/SourceFiles/settings/settings_information.cpp
index 15270b3c2..476c6ba32 100644
--- a/Telegram/SourceFiles/settings/settings_information.cpp
+++ b/Telegram/SourceFiles/settings/settings_information.cpp
@@ -16,6 +16,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/popup_menu.h"
 #include "ui/widgets/box_content_divider.h"
 #include "ui/special_buttons.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
 #include "boxes/add_contact_box.h"
 #include "boxes/confirm_box.h"
@@ -26,7 +28,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/profile/info_profile_values.h"
 #include "lang/lang_keys.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "window/window_session_controller.h"
 #include "apiwrap.h"
 #include "core/file_utilities.h"
@@ -397,7 +398,7 @@ BioManager SetupBio(
 	QObject::connect(bio, &Ui::InputField::changed, updated);
 	bio->setInstantReplaces(Ui::InstantReplaces::Default());
 	bio->setInstantReplacesEnabled(
-		self->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	Ui::Emoji::SuggestionsController::Init(
 		container->window(),
 		bio,
diff --git a/Telegram/SourceFiles/settings/settings_main.cpp b/Telegram/SourceFiles/settings/settings_main.cpp
index 460ac7c86..e4f0281ed 100644
--- a/Telegram/SourceFiles/settings/settings_main.cpp
+++ b/Telegram/SourceFiles/settings/settings_main.cpp
@@ -26,6 +26,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "storage/localstorage.h"
 #include "main/main_session.h"
+#include "main/main_session_settings.h"
 #include "main/main_account.h"
 #include "main/main_app_config.h"
 #include "apiwrap.h"
@@ -117,7 +118,7 @@ void SetupSections(
 				st::settingsSectionButton,
 				&st::settingsIconFolders)))->setDuration(0);
 	if (!controller->session().data().chatsFilters().list().empty()
-		|| Global::DialogsFiltersEnabled()) {
+		|| controller->session().settings().dialogsFiltersEnabled()) {
 		slided->show(anim::type::instant);
 		preload();
 	} else {
diff --git a/Telegram/SourceFiles/settings/settings_notifications.cpp b/Telegram/SourceFiles/settings/settings_notifications.cpp
index bf953e29f..d9390aa57 100644
--- a/Telegram/SourceFiles/settings/settings_notifications.cpp
+++ b/Telegram/SourceFiles/settings/settings_notifications.cpp
@@ -22,7 +22,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwindow.h"
 #include "core/application.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
+#include "main/main_domain.h"
 #include "apiwrap.h"
 #include "facades.h"
 #include "app.h"
@@ -38,8 +38,11 @@ namespace {
 
 constexpr auto kMaxNotificationsCount = 5;
 
-int CurrentCount() {
-	return snap(Global::NotificationsCount(), 1, kMaxNotificationsCount);
+[[nodiscard]] int CurrentCount() {
+	return snap(
+		Core::App().settings().notificationsCount(),
+		1,
+		kMaxNotificationsCount);
 }
 
 using ChangeType = Window::Notifications::ChangeType;
@@ -64,7 +67,7 @@ protected:
 	int resizeGetHeight(int newWidth) override;
 
 private:
-	using ScreenCorner = Notify::ScreenCorner;
+	using ScreenCorner = Core::Settings::ScreenCorner;
 	void setOverCorner(ScreenCorner corner);
 	void clearOverCorner();
 
@@ -126,7 +129,7 @@ NotificationsCount::NotificationsCount(
 	QWidget *parent,
 	not_null<Window::SessionController*> controller)
 : _controller(controller)
-, _chosenCorner(Global::NotificationsCorner())
+, _chosenCorner(Core::App().settings().notificationsCorner())
 , _oldCount(CurrentCount()) {
 	setMouseTracking(true);
 
@@ -153,9 +156,9 @@ void NotificationsCount::paintEvent(QPaintEvent *e) {
 	st::notificationsBoxMonitor.paint(p, contentLeft, monitorTop, width());
 
 	for (int corner = 0; corner != 4; ++corner) {
-		auto screenCorner = static_cast<Notify::ScreenCorner>(corner);
-		auto isLeft = Notify::IsLeftCorner(screenCorner);
-		auto isTop = Notify::IsTopCorner(screenCorner);
+		auto screenCorner = static_cast<ScreenCorner>(corner);
+		auto isLeft = Core::Settings::IsLeftCorner(screenCorner);
+		auto isTop = Core::Settings::IsTopCorner(screenCorner);
 		auto sampleLeft = isLeft ? (screenRect.x() + st::notificationsSampleSkip) : (screenRect.x() + screenRect.width() - st::notificationsSampleSkip - st::notificationSampleSize.width());
 		auto sampleTop = isTop ? (screenRect.y() + st::notificationsSampleTopSkip) : (screenRect.y() + screenRect.height() - st::notificationsSampleBottomSkip - st::notificationSampleSize.height());
 		if (corner == static_cast<int>(_chosenCorner)) {
@@ -185,11 +188,11 @@ void NotificationsCount::setCount(int count) {
 		_sampleOpacities[_oldCount + animatedDelta].start([this] { update(); }, from, to, st::notifyFastAnim);
 	}
 
-	if (count != Global::NotificationsCount()) {
-		Global::SetNotificationsCount(count);
+	if (count != Core::App().settings().notificationsCount()) {
+		Core::App().settings().setNotificationsCount(count);
+		Core::App().saveSettingsDelayed();
 		_controller->session().notifications().settingsChanged().notify(
 			ChangeType::MaxCount);
-		_controller->session().saveSettingsDelayed();
 	}
 }
 
@@ -324,13 +327,13 @@ void NotificationsCount::mouseMoveEvent(QMouseEvent *e) {
 	auto bottomRight = style::rtlrect(screenRect.x() + screenRect.width() - cornerWidth, screenRect.y() + screenRect.height() - cornerHeight, cornerWidth, cornerHeight, width());
 	auto bottomLeft = style::rtlrect(screenRect.x(), screenRect.y() + screenRect.height() - cornerHeight, cornerWidth, cornerHeight, width());
 	if (topLeft.contains(e->pos())) {
-		setOverCorner(Notify::ScreenCorner::TopLeft);
+		setOverCorner(ScreenCorner::TopLeft);
 	} else if (topRight.contains(e->pos())) {
-		setOverCorner(Notify::ScreenCorner::TopRight);
+		setOverCorner(ScreenCorner::TopRight);
 	} else if (bottomRight.contains(e->pos())) {
-		setOverCorner(Notify::ScreenCorner::BottomRight);
+		setOverCorner(ScreenCorner::BottomRight);
 	} else if (bottomLeft.contains(e->pos())) {
-		setOverCorner(Notify::ScreenCorner::BottomLeft);
+		setOverCorner(ScreenCorner::BottomLeft);
 	} else {
 		clearOverCorner();
 	}
@@ -340,7 +343,7 @@ void NotificationsCount::leaveEventHook(QEvent *e) {
 	clearOverCorner();
 }
 
-void NotificationsCount::setOverCorner(Notify::ScreenCorner corner) {
+void NotificationsCount::setOverCorner(ScreenCorner corner) {
 	if (_isOverCorner) {
 		if (corner == _overCorner) {
 			return;
@@ -366,8 +369,8 @@ void NotificationsCount::setOverCorner(Notify::ScreenCorner corner) {
 	}
 	if (samplesNeeded > samplesLeave) {
 		auto r = psDesktopRect();
-		auto isLeft = Notify::IsLeftCorner(_overCorner);
-		auto isTop = Notify::IsTopCorner(_overCorner);
+		auto isLeft = Core::Settings::IsLeftCorner(_overCorner);
+		auto isTop = Core::Settings::IsTopCorner(_overCorner);
 		auto sampleLeft = (isLeft == rtl()) ? (r.x() + r.width() - st::notifyWidth - st::notifyDeltaX) : (r.x() + st::notifyDeltaX);
 		auto sampleTop = isTop ? (r.y() + st::notifyDeltaY) : (r.y() + r.height() - st::notifyDeltaY - st::notifyMinHeight);
 		for (int i = samplesLeave; i != samplesNeeded; ++i) {
@@ -412,11 +415,11 @@ void NotificationsCount::mouseReleaseEvent(QMouseEvent *e) {
 		_chosenCorner = _downCorner;
 		update();
 
-		if (_chosenCorner != Global::NotificationsCorner()) {
-			Global::SetNotificationsCorner(_chosenCorner);
+		if (_chosenCorner != Core::App().settings().notificationsCorner()) {
+			Core::App().settings().setNotificationsCorner(_chosenCorner);
+			Core::App().saveSettingsDelayed();
 			_controller->session().notifications().settingsChanged().notify(
 				ChangeType::Corner);
-			_controller->session().saveSettingsDelayed();
 		}
 	}
 }
@@ -562,25 +565,26 @@ void SetupNotificationsContent(
 				checkbox(label, checked),
 				st::settingsCheckboxPadding));
 	};
+	const auto &settings = Core::App().settings();
 	const auto desktop = addCheckbox(
 		tr::lng_settings_desktop_notify(tr::now),
-		Global::DesktopNotify());
+		settings.desktopNotify());
 	const auto name = addSlidingCheckbox(
 		tr::lng_settings_show_name(tr::now),
-		(Global::NotifyView() <= dbinvShowName));
+		(settings.notifyView() <= dbinvShowName));
 	const auto preview = addSlidingCheckbox(
 		tr::lng_settings_show_preview(tr::now),
-		(Global::NotifyView() <= dbinvShowPreview));
+		(settings.notifyView() <= dbinvShowPreview));
 	const auto sound = addCheckbox(
 		tr::lng_settings_sound_notify(tr::now),
-		Global::SoundNotify());
+		settings.soundNotify());
 	const auto flashbounce = addCheckbox(
 		(Platform::IsWindows()
 			? tr::lng_settings_alert_windows
 			: Platform::IsMac()
 			? tr::lng_settings_alert_mac
 			: tr::lng_settings_alert_linux)(tr::now),
-		Global::FlashBounceNotify());
+		settings.flashBounceNotify());
 
 	AddSkip(container, st::settingsCheckboxesSkip);
 	AddDivider(container);
@@ -589,10 +593,10 @@ void SetupNotificationsContent(
 
 	const auto muted = addCheckbox(
 		tr::lng_settings_include_muted(tr::now),
-		session->settings().includeMutedCounter());
+		settings.includeMutedCounter());
 	const auto count = addCheckbox(
 		tr::lng_settings_count_unread(tr::now),
-		session->settings().countUnreadMessages());
+		settings.countUnreadMessages());
 
 	AddSkip(container, st::settingsCheckboxesSkip);
 	AddDivider(container);
@@ -616,17 +620,17 @@ void SetupNotificationsContent(
 
 	const auto pinned = addCheckbox(
 		tr::lng_settings_events_pinned(tr::now),
-		session->settings().notifyAboutPinned());
-	session->settings().notifyAboutPinnedChanges(
+		settings.notifyAboutPinned());
+	settings.notifyAboutPinnedChanges(
 	) | rpl::start_with_next([=](bool notify) {
 		pinned->setChecked(notify);
 	}, pinned->lifetime());
 	pinned->checkedChanges(
 	) | rpl::filter([=](bool notify) {
-		return (notify != session->settings().notifyAboutPinned());
+		return (notify != Core::App().settings().notifyAboutPinned());
 	}) | rpl::start_with_next([=](bool notify) {
-		session->settings().setNotifyAboutPinned(notify);
-		session->saveSettingsDelayed();
+		Core::App().settings().setNotifyAboutPinned(notify);
+		Core::App().saveSettingsDelayed();
 	}, joined->lifetime());
 
 	const auto nativeText = [&] {
@@ -648,7 +652,7 @@ void SetupNotificationsContent(
 		AddDivider(container);
 		AddSkip(container, st::settingsCheckboxesSkip);
 		AddSubsectionTitle(container, tr::lng_settings_native_title());
-		return addCheckbox(nativeText, Global::NativeNotifications());
+		return addCheckbox(nativeText, settings.nativeNotifications());
 	}();
 
 	const auto advancedSlide = !Platform::IsMac10_8OrGreater()
@@ -674,20 +678,20 @@ void SetupNotificationsContent(
 		name->hide(anim::type::instant);
 		preview->hide(anim::type::instant);
 	}
-	if (native && advancedSlide && Global::NativeNotifications()) {
+	if (native && advancedSlide && settings.nativeNotifications()) {
 		advancedSlide->hide(anim::type::instant);
 	}
 
 	using Change = Window::Notifications::ChangeType;
 	const auto changed = [=](Change change) {
-		session->saveSettingsDelayed();
+		Core::App().saveSettingsDelayed();
 		session->notifications().settingsChanged().notify(change);
 	};
 	desktop->checkedChanges(
 	) | rpl::filter([](bool checked) {
-		return (checked != Global::DesktopNotify());
+		return (checked != Core::App().settings().desktopNotify());
 	}) | rpl::start_with_next([=](bool checked) {
-		Global::SetDesktopNotify(checked);
+		Core::App().settings().setDesktopNotify(checked);
 		changed(Change::DesktopEnabled);
 	}, desktop->lifetime());
 
@@ -700,9 +704,9 @@ void SetupNotificationsContent(
 		}
 		return dbinvShowPreview;
 	}) | rpl::filter([=](DBINotifyView value) {
-		return (value != Global::NotifyView());
+		return (value != Core::App().settings().notifyView());
 	}) | rpl::start_with_next([=](DBINotifyView value) {
-		Global::SetNotifyView(value);
+		Core::App().settings().setNotifyView(value);
 		changed(Change::ViewParams);
 	}, name->lifetime());
 
@@ -715,41 +719,41 @@ void SetupNotificationsContent(
 		}
 		return dbinvShowNothing;
 	}) | rpl::filter([=](DBINotifyView value) {
-		return (value != Global::NotifyView());
+		return (value != Core::App().settings().notifyView());
 	}) | rpl::start_with_next([=](DBINotifyView value) {
-		Global::SetNotifyView(value);
+		Core::App().settings().setNotifyView(value);
 		changed(Change::ViewParams);
 	}, preview->lifetime());
 
 	sound->checkedChanges(
 	) | rpl::filter([](bool checked) {
-		return (checked != Global::SoundNotify());
+		return (checked != Core::App().settings().soundNotify());
 	}) | rpl::start_with_next([=](bool checked) {
-		Global::SetSoundNotify(checked);
+		Core::App().settings().setSoundNotify(checked);
 		changed(Change::SoundEnabled);
 	}, sound->lifetime());
 
 	flashbounce->checkedChanges(
 	) | rpl::filter([](bool checked) {
-		return (checked != Global::FlashBounceNotify());
+		return (checked != Core::App().settings().flashBounceNotify());
 	}) | rpl::start_with_next([=](bool checked) {
-		Global::SetFlashBounceNotify(checked);
+		Core::App().settings().setFlashBounceNotify(checked);
 		changed(Change::FlashBounceEnabled);
 	}, flashbounce->lifetime());
 
 	muted->checkedChanges(
 	) | rpl::filter([=](bool checked) {
-		return (checked != session->settings().includeMutedCounter());
+		return (checked != Core::App().settings().includeMutedCounter());
 	}) | rpl::start_with_next([=](bool checked) {
-		session->settings().setIncludeMutedCounter(checked);
+		Core::App().settings().setIncludeMutedCounter(checked);
 		changed(Change::IncludeMuted);
 	}, muted->lifetime());
 
 	count->checkedChanges(
 	) | rpl::filter([=](bool checked) {
-		return (checked != session->settings().countUnreadMessages());
+		return (checked != Core::App().settings().countUnreadMessages());
 	}) | rpl::start_with_next([=](bool checked) {
-		session->settings().setCountUnreadMessages(checked);
+		Core::App().settings().setCountUnreadMessages(checked);
 		changed(Change::CountMessages);
 	}, count->lifetime());
 
@@ -757,32 +761,35 @@ void SetupNotificationsContent(
 		session->notifications().settingsChanged()
 	) | rpl::start_with_next([=](Change change) {
 		if (change == Change::DesktopEnabled) {
-			desktop->setChecked(Global::DesktopNotify());
-			name->toggle(Global::DesktopNotify(), anim::type::normal);
+			desktop->setChecked(Core::App().settings().desktopNotify());
+			name->toggle(
+				Core::App().settings().desktopNotify(),
+				anim::type::normal);
 			preview->toggle(
-				Global::DesktopNotify() && name->entity()->checked(),
+				(Core::App().settings().desktopNotify()
+					&& name->entity()->checked()),
 				anim::type::normal);
 		} else if (change == Change::ViewParams) {
 			preview->toggle(name->entity()->checked(), anim::type::normal);
 		} else if (change == Change::SoundEnabled) {
-			sound->setChecked(Global::SoundNotify());
+			sound->setChecked(Core::App().settings().soundNotify());
 		} else if (change == Change::FlashBounceEnabled) {
-			flashbounce->setChecked(Global::FlashBounceNotify());
+			flashbounce->setChecked(Core::App().settings().flashBounceNotify());
 		}
 	}, desktop->lifetime());
 
 	if (native) {
 		native->checkedChanges(
 		) | rpl::filter([](bool checked) {
-			return (checked != Global::NativeNotifications());
+			return (checked != Core::App().settings().nativeNotifications());
 		}) | rpl::start_with_next([=](bool checked) {
-			Global::SetNativeNotifications(checked);
-			session->saveSettingsDelayed();
+			Core::App().settings().setNativeNotifications(checked);
+			Core::App().saveSettingsDelayed();
 			session->notifications().createManager();
 
 			if (advancedSlide) {
 				advancedSlide->toggle(
-					!Global::NativeNotifications(),
+					!Core::App().settings().nativeNotifications(),
 					anim::type::normal);
 			}
 		}, native->lifetime());
diff --git a/Telegram/SourceFiles/settings/settings_privacy_controllers.cpp b/Telegram/SourceFiles/settings/settings_privacy_controllers.cpp
index f7ea9bda7..ab08a5789 100644
--- a/Telegram/SourceFiles/settings/settings_privacy_controllers.cpp
+++ b/Telegram/SourceFiles/settings/settings_privacy_controllers.cpp
@@ -12,10 +12,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "apiwrap.h"
 #include "mainwidget.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "data/data_user.h"
 #include "data/data_session.h"
 #include "data/data_changes.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "history/admin_log/history_admin_log_item.h"
 #include "history/view/history_view_element.h"
 #include "history/view/history_view_message.h"
@@ -252,8 +253,8 @@ void BlockedBoxController::loadMoreRows() {
 
 void BlockedBoxController::rowClicked(not_null<PeerListRow*> row) {
 	const auto peer = row->peer();
-	crl::on_main(&peer->session(), [peerId = peer->id] {
-		Ui::showPeerHistory(peerId, ShowAtUnreadMsgId);
+	crl::on_main(&peer->session(), [=] {
+		Ui::showPeerHistory(peer, ShowAtUnreadMsgId);
 	});
 }
 
@@ -511,7 +512,7 @@ rpl::producer<QString> LastSeenPrivacyController::exceptionsDescription() {
 void LastSeenPrivacyController::confirmSave(
 		bool someAreDisallowed,
 		FnMut<void()> saveCallback) {
-	if (someAreDisallowed && !_session->settings().lastSeenWarningSeen()) {
+	if (someAreDisallowed && !Core::App().settings().lastSeenWarningSeen()) {
 		const auto session = _session;
 		auto weakBox = std::make_shared<QPointer<ConfirmBox>>();
 		auto callback = [=, saveCallback = std::move(saveCallback)]() mutable {
@@ -519,8 +520,8 @@ void LastSeenPrivacyController::confirmSave(
 				box->closeBox();
 			}
 			saveCallback();
-			session->settings().setLastSeenWarningSeen(true);
-			session->saveSettingsDelayed();
+			Core::App().settings().setLastSeenWarningSeen(true);
+			Core::App().saveSettingsDelayed();
 		};
 		auto box = Box<ConfirmBox>(
 			tr::lng_edit_privacy_lastseen_warning(tr::now),
diff --git a/Telegram/SourceFiles/settings/settings_privacy_security.cpp b/Telegram/SourceFiles/settings/settings_privacy_security.cpp
index 24bc5bdaa..2321c206e 100644
--- a/Telegram/SourceFiles/settings/settings_privacy_security.cpp
+++ b/Telegram/SourceFiles/settings/settings_privacy_security.cpp
@@ -18,6 +18,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/sessions_box.h"
 #include "boxes/confirm_box.h"
 #include "boxes/self_destruction_box.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "ui/wrap/vertical_layout.h"
 #include "ui/wrap/slide_wrap.h"
 #include "ui/wrap/fade_wrap.h"
@@ -238,7 +240,7 @@ void SetupLocalPasscode(
 		: tr::lng_passcode_autolock_inactive;
 	auto value = PasscodeChanges(
 	) | rpl::map([] {
-		const auto autolock = Global::AutoLock();
+		const auto autolock = Core::App().settings().autoLock();
 		return (autolock % 3600)
 			? tr::lng_passcode_autolock_minutes(tr::now, lt_count, autolock / 60)
 			: tr::lng_passcode_autolock_hours(tr::now, lt_count, autolock / 3600);
diff --git a/Telegram/SourceFiles/storage/details/storage_settings_scheme.cpp b/Telegram/SourceFiles/storage/details/storage_settings_scheme.cpp
index ce5962b9a..72637b07e 100644
--- a/Telegram/SourceFiles/storage/details/storage_settings_scheme.cpp
+++ b/Telegram/SourceFiles/storage/details/storage_settings_scheme.cpp
@@ -85,7 +85,7 @@ bool ReadSetting(
 		stream >> serialized;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Core::App().settings().constructFromSerialized(serialized);
+		Core::App().settings().addFromSerialized(serialized);
 	} break;
 
 	case dbiChatSizeMaxOld: {
@@ -234,13 +234,13 @@ bool ReadSetting(
 		anim::SetDisabled(disabled == 1);
 	} break;
 
-	case dbiSoundFlashBounceNotify: {
+	case dbiSoundFlashBounceNotifyOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetSoundNotify((v & 0x01) == 0x01);
-		Global::SetFlashBounceNotify((v & 0x02) == 0x00);
+		Core::App().settings().setSoundNotify((v & 0x01) == 0x01);
+		Core::App().settings().setFlashBounceNotify((v & 0x02) == 0x00);
 	} break;
 
 	case dbiAutoDownloadOld: {
@@ -302,20 +302,20 @@ bool ReadSetting(
 		if (!CheckStreamStatus(stream)) return false;
 	} break;
 
-	case dbiDialogsFilters: {
+	case dbiDialogsFiltersOld: {
 		qint32 enabled;
 		stream >> enabled;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetDialogsFiltersEnabled(enabled == 1);
+		context.sessionSettings().setDialogsFiltersEnabled(enabled == 1);
 	} break;
 
-	case dbiModerateMode: {
+	case dbiModerateModeOld: {
 		qint32 enabled;
 		stream >> enabled;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetModerateModeEnabled(enabled == 1);
+		Core::App().settings().setModerateModeEnabled(enabled == 1);
 	} break;
 
 	case dbiIncludeMutedOld: {
@@ -323,7 +323,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setIncludeMutedCounter(v == 1);
+		Core::App().settings().setIncludeMutedCounter(v == 1);
 	} break;
 
 	case dbiShowingSavedGifsOld: {
@@ -332,12 +332,12 @@ bool ReadSetting(
 		if (!CheckStreamStatus(stream)) return false;
 	} break;
 
-	case dbiDesktopNotify: {
+	case dbiDesktopNotifyOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetDesktopNotify(v == 1);
+		Core::App().settings().setDesktopNotify(v == 1);
 	} break;
 
 	case dbiWindowsNotificationsOld: {
@@ -346,28 +346,28 @@ bool ReadSetting(
 		if (!CheckStreamStatus(stream)) return false;
 	} break;
 
-	case dbiNativeNotifications: {
+	case dbiNativeNotificationsOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetNativeNotifications(v == 1);
+		Core::App().settings().setNativeNotifications(v == 1);
 	} break;
 
-	case dbiNotificationsCount: {
+	case dbiNotificationsCountOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetNotificationsCount((v > 0 ? v : 3));
+		Core::App().settings().setNotificationsCount((v > 0 ? v : 3));
 	} break;
 
-	case dbiNotificationsCorner: {
+	case dbiNotificationsCornerOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetNotificationsCorner(static_cast<Notify::ScreenCorner>((v >= 0 && v < 4) ? v : 2));
+		Core::App().settings().setNotificationsCorner(static_cast<Core::Settings::ScreenCorner>((v >= 0 && v < 4) ? v : 2));
 	} break;
 
 	case dbiDialogsWidthRatioOld: {
@@ -383,7 +383,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setLastSeenWarningSeen(v == 1);
+		Core::App().settings().setLastSeenWarningSeen(v == 1);
 	} break;
 
 	case dbiSessionSettings: {
@@ -391,8 +391,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettingsStorage
-			= Main::SessionSettings::FromSerialized(v);
+		context.sessionSettings().addFromSerialized(v);
 	} break;
 
 	case dbiWorkMode: {
@@ -720,7 +719,7 @@ bool ReadSetting(
 			&& unchecked != SendSettings::CtrlEnter) {
 			return false;
 		}
-		context.sessionSettings().setSendSubmitWay(unchecked);
+		Core::App().settings().setSendSubmitWay(unchecked);
 	} break;
 
 	case dbiCatsAndDogs: { // deprecated
@@ -753,20 +752,20 @@ bool ReadSetting(
 		context.tileNight = (tileNight == 1);
 	} break;
 
-	case dbiAdaptiveForWide: {
+	case dbiAdaptiveForWideOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetAdaptiveForWide(v == 1);
+		Core::App().settings().setAdaptiveForWide(v == 1);
 	} break;
 
-	case dbiAutoLock: {
+	case dbiAutoLockOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetAutoLock(v);
+		Core::App().settings().setAutoLock(v);
 		Global::RefLocalPasscodeChanged().notify();
 	} break;
 
@@ -775,7 +774,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setReplaceEmoji(v == 1);
+		Core::App().settings().setReplaceEmoji(v == 1);
 	} break;
 
 	case dbiSuggestEmojiOld: {
@@ -783,7 +782,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setSuggestEmoji(v == 1);
+		Core::App().settings().setSuggestEmoji(v == 1);
 	} break;
 
 	case dbiSuggestStickersByEmojiOld: {
@@ -791,7 +790,7 @@ bool ReadSetting(
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setSuggestStickersByEmoji(v == 1);
+		Core::App().settings().setSuggestStickersByEmoji(v == 1);
 	} break;
 
 	case dbiDefaultAttach: {
@@ -800,39 +799,38 @@ bool ReadSetting(
 		if (!CheckStreamStatus(stream)) return false;
 	} break;
 
-	case dbiNotifyView: {
+	case dbiNotifyViewOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
 		switch (v) {
-		case dbinvShowNothing: Global::SetNotifyView(dbinvShowNothing); break;
-		case dbinvShowName: Global::SetNotifyView(dbinvShowName); break;
-		default: Global::SetNotifyView(dbinvShowPreview); break;
+		case dbinvShowNothing: Core::App().settings().setNotifyView(dbinvShowNothing); break;
+		case dbinvShowName: Core::App().settings().setNotifyView(dbinvShowName); break;
+		default: Core::App().settings().setNotifyView(dbinvShowPreview); break;
 		}
 	} break;
 
-	case dbiAskDownloadPath: {
+	case dbiAskDownloadPathOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetAskDownloadPath(v == 1);
+		Core::App().settings().setAskDownloadPath(v == 1);
 	} break;
 
-	case dbiDownloadPathOld: {
+	case dbiDownloadPathOldOld: {
 		QString v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 #ifndef OS_WIN_STORE
 		if (!v.isEmpty() && v != qstr("tmp") && !v.endsWith('/')) v += '/';
-		Global::SetDownloadPath(v);
-		Global::SetDownloadPathBookmark(QByteArray());
-		Global::RefDownloadPathChanged().notify();
+		Core::App().settings().setDownloadPathBookmark(QByteArray());
+		Core::App().settings().setDownloadPath(v);
 #endif // OS_WIN_STORE
 	} break;
 
-	case dbiDownloadPath: {
+	case dbiDownloadPathOld: {
 		QString v;
 		QByteArray bookmark;
 		stream >> v >> bookmark;
@@ -840,19 +838,18 @@ bool ReadSetting(
 
 #ifndef OS_WIN_STORE
 		if (!v.isEmpty() && v != qstr("tmp") && !v.endsWith('/')) v += '/';
-		Global::SetDownloadPath(v);
-		Global::SetDownloadPathBookmark(bookmark);
+		Core::App().settings().setDownloadPathBookmark(bookmark);
+		Core::App().settings().setDownloadPath(v);
 		psDownloadPathEnableAccess();
-		Global::RefDownloadPathChanged().notify();
 #endif // OS_WIN_STORE
 	} break;
 
-	case dbiCompressPastedImage: {
+	case dbiCompressPastedImageOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.sessionSettings().setSendFilesWay((v == 1)
+		Core::App().settings().setSendFilesWay((v == 1)
 			? SendFilesWay::Album
 			: SendFilesWay::Files);
 	} break;
@@ -976,36 +973,56 @@ bool ReadSetting(
 		cSetDialogLastPath(path);
 	} break;
 
-	case dbiSongVolume: {
+	case dbiSongVolumeOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetSongVolume(snap(v / 1e6, 0., 1.));
+		Core::App().settings().setSongVolume(snap(v / 1e6, 0., 1.));
 	} break;
 
-	case dbiVideoVolume: {
+	case dbiVideoVolumeOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetVideoVolume(snap(v / 1e6, 0., 1.));
+		Core::App().settings().setVideoVolume(snap(v / 1e6, 0., 1.));
 	} break;
 
-	case dbiPlaybackSpeed: {
+	case dbiPlaybackSpeedOld: {
 		qint32 v;
 		stream >> v;
 		if (!CheckStreamStatus(stream)) return false;
 
-		Global::SetVoiceMsgPlaybackDoubled(v == 2);
+		Core::App().settings().setVoiceMsgPlaybackDoubled(v == 2);
 	} break;
 
-	case dbiCallSettings: {
+	case dbiCallSettingsOld: {
 		QByteArray callSettings;
 		stream >> callSettings;
 		if (!CheckStreamStatus(stream)) return false;
 
-		context.callSettings = callSettings;
+		QDataStream settingsStream(&callSettings, QIODevice::ReadOnly);
+		settingsStream.setVersion(QDataStream::Qt_5_1);
+		QString outputDeviceID;
+		QString inputDeviceID;
+		qint32 outputVolume;
+		qint32 inputVolume;
+		qint32 duckingEnabled;
+
+		settingsStream >> outputDeviceID;
+		settingsStream >> outputVolume;
+		settingsStream >> inputDeviceID;
+		settingsStream >> inputVolume;
+		settingsStream >> duckingEnabled;
+		if (CheckStreamStatus(settingsStream)) {
+			auto &app = Core::App().settings();
+			app.setCallOutputDeviceID(outputDeviceID);
+			app.setCallOutputVolume(outputVolume);
+			app.setCallInputDeviceID(inputDeviceID);
+			app.setCallInputVolume(inputVolume);
+			app.setCallAudioDuckingEnabled(duckingEnabled);
+		}
 	} break;
 
 	case dbiFallbackProductionConfig: {
diff --git a/Telegram/SourceFiles/storage/details/storage_settings_scheme.h b/Telegram/SourceFiles/storage/details/storage_settings_scheme.h
index 60024db73..44e425543 100644
--- a/Telegram/SourceFiles/storage/details/storage_settings_scheme.h
+++ b/Telegram/SourceFiles/storage/details/storage_settings_scheme.h
@@ -54,8 +54,6 @@ struct ReadSettingsContext {
 	FileKey langPackKey = 0;
 	FileKey languagesKey = 0;
 
-	QByteArray callSettings;
-
 	QByteArray mtpAuthorization;
 	std::vector<std::shared_ptr<MTP::AuthKey>> mtpLegacyKeys;
 	qint32 mtpLegacyMainDcId = 0;
@@ -82,10 +80,10 @@ enum {
 	dbiSendKeyOld = 0x05,
 	dbiAutoStart = 0x06,
 	dbiStartMinimized = 0x07,
-	dbiSoundFlashBounceNotify = 0x08,
+	dbiSoundFlashBounceNotifyOld = 0x08,
 	dbiWorkMode = 0x09,
 	dbiSeenTrayTooltip = 0x0a,
-	dbiDesktopNotify = 0x0b,
+	dbiDesktopNotifyOld = 0x0b,
 	dbiAutoUpdate = 0x0c,
 	dbiLastUpdateCheck = 0x0d,
 	dbiWindowPosition = 0x0e,
@@ -94,47 +92,47 @@ enum {
 	dbiDefaultAttach = 0x11,
 	dbiCatsAndDogs = 0x12,
 	dbiReplaceEmojiOld = 0x13,
-	dbiAskDownloadPath = 0x14,
-	dbiDownloadPathOld = 0x15,
+	dbiAskDownloadPathOld = 0x14,
+	dbiDownloadPathOldOld = 0x15,
 	dbiScaleOld = 0x16,
 	dbiEmojiTabOld = 0x17,
 	dbiRecentEmojiOldOld = 0x18,
 	dbiLoggedPhoneNumberOld = 0x19,
 	dbiMutedPeersOld = 0x1a,
 	// 0x1b reserved
-	dbiNotifyView = 0x1c,
+	dbiNotifyViewOld = 0x1c,
 	dbiSendToMenu = 0x1d,
-	dbiCompressPastedImage = 0x1e,
+	dbiCompressPastedImageOld = 0x1e,
 	dbiLangOld = 0x1f,
 	dbiLangFileOld = 0x20,
 	dbiTileBackgroundOld = 0x21,
-	dbiAutoLock = 0x22,
+	dbiAutoLockOld = 0x22,
 	dbiDialogLastPath = 0x23,
 	dbiRecentEmojiOld = 0x24,
 	dbiEmojiVariantsOld = 0x25,
 	dbiRecentStickers = 0x26,
 	dbiDcOptionOld = 0x27,
 	dbiTryIPv6 = 0x28,
-	dbiSongVolume = 0x29,
+	dbiSongVolumeOld = 0x29,
 	dbiWindowsNotificationsOld = 0x30,
 	dbiIncludeMutedOld = 0x31,
 	dbiMegagroupSizeMaxOld = 0x32,
-	dbiDownloadPath = 0x33,
+	dbiDownloadPathOld = 0x33,
 	dbiAutoDownloadOld = 0x34,
 	dbiSavedGifsLimitOld = 0x35,
 	dbiShowingSavedGifsOld = 0x36,
 	dbiAutoPlayOld = 0x37,
-	dbiAdaptiveForWide = 0x38,
+	dbiAdaptiveForWideOld = 0x38,
 	dbiHiddenPinnedMessagesOld = 0x39,
 	dbiRecentEmoji = 0x3a,
 	dbiEmojiVariants = 0x3b,
 	dbiDialogsModeOld = 0x40,
-	dbiModerateMode = 0x41,
-	dbiVideoVolume = 0x42,
+	dbiModerateModeOld = 0x41,
+	dbiVideoVolumeOld = 0x42,
 	dbiStickersRecentLimitOld = 0x43,
-	dbiNativeNotifications = 0x44,
-	dbiNotificationsCount = 0x45,
-	dbiNotificationsCorner = 0x46,
+	dbiNativeNotificationsOld = 0x44,
+	dbiNotificationsCountOld = 0x45,
+	dbiNotificationsCornerOld = 0x46,
 	dbiThemeKeyOld = 0x47,
 	dbiDialogsWidthRatioOld = 0x48,
 	dbiUseExternalVideoPlayer = 0x49,
@@ -153,13 +151,13 @@ enum {
 	dbiCacheSettingsOld = 0x56,
 	dbiAnimationsDisabled = 0x57,
 	dbiScalePercent = 0x58,
-	dbiPlaybackSpeed = 0x59,
+	dbiPlaybackSpeedOld = 0x59,
 	dbiLanguagesKey = 0x5a,
-	dbiCallSettings = 0x5b,
+	dbiCallSettingsOld = 0x5b,
 	dbiCacheSettings = 0x5c,
 	dbiTxtDomainStringOld = 0x5d,
 	dbiApplicationSettings = 0x5e,
-	dbiDialogsFilters = 0x5f,
+	dbiDialogsFiltersOld = 0x5f,
 	dbiFallbackProductionConfig = 0x60,
 
 	dbiEncryptedWithSalt = 333,
diff --git a/Telegram/SourceFiles/storage/file_download.cpp b/Telegram/SourceFiles/storage/file_download.cpp
index f5a056b01..d78a8ab36 100644
--- a/Telegram/SourceFiles/storage/file_download.cpp
+++ b/Telegram/SourceFiles/storage/file_download.cpp
@@ -22,7 +22,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/crash_reports.h"
 #include "base/bytes.h"
 #include "base/openssl_help.h"
-#include "facades.h"
 #include "app.h"
 
 namespace {
diff --git a/Telegram/SourceFiles/storage/localstorage.cpp b/Telegram/SourceFiles/storage/localstorage.cpp
index 9d88cd77e..97fd4279c 100644
--- a/Telegram/SourceFiles/storage/localstorage.cpp
+++ b/Telegram/SourceFiles/storage/localstorage.cpp
@@ -21,7 +21,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/mtproto_config.h"
 #include "mtproto/mtproto_dc_options.h"
 #include "core/application.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_account.h"
 #include "main/main_session.h"
 #include "window/themes/window_theme.h"
@@ -98,15 +98,15 @@ bool CheckStreamStatus(QDataStream &stream) {
 			: nullptr;
 	};
 	const auto &app = Core::App();
-	const auto &accounts = app.accounts();
+	const auto &domain = app.domain();
 	const auto production = MTP::Environment::Production;
-	if (!accounts.started()) {
+	if (!domain.started()) {
 		return app.fallbackProductionConfig();
 	}
 	if (const auto result = lookupConfig(&app.activeAccount())) {
 		return *result;
 	}
-	for (const auto &[_, account] : accounts.list()) {
+	for (const auto &[_, account] : domain.accounts()) {
 		if (const auto result = lookupConfig(account.get())) {
 			return *result;
 		}
diff --git a/Telegram/SourceFiles/storage/storage_account.cpp b/Telegram/SourceFiles/storage/storage_account.cpp
index 56c92503a..904b455ed 100644
--- a/Telegram/SourceFiles/storage/storage_account.cpp
+++ b/Telegram/SourceFiles/storage/storage_account.cpp
@@ -8,7 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_account.h"
 
 #include "storage/localstorage.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "storage/storage_encryption.h"
 #include "storage/storage_clear_legacy.h"
 #include "storage/cache/storage_cache_types.h"
@@ -31,7 +31,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_drafts.h"
 #include "export/export_settings.h"
 #include "window/themes/window_theme.h"
-#include "facades.h"
 
 namespace Storage {
 namespace {
@@ -708,43 +707,6 @@ void Account::readLocations() {
 	}
 }
 
-QByteArray Account::serializeCallSettings() {
-	QByteArray result = QByteArray();
-	uint32 size = 3 * sizeof(qint32) + Serialize::stringSize(Global::CallOutputDeviceID()) + Serialize::stringSize(Global::CallInputDeviceID());
-	result.reserve(size);
-	QDataStream stream(&result, QIODevice::WriteOnly);
-	stream.setVersion(QDataStream::Qt_5_1);
-	stream << Global::CallOutputDeviceID();
-	stream << qint32(Global::CallOutputVolume());
-	stream << Global::CallInputDeviceID();
-	stream << qint32(Global::CallInputVolume());
-	stream << qint32(Global::CallAudioDuckingEnabled() ? 1 : 0);
-	return result;
-}
-
-void Account::deserializeCallSettings(QByteArray &settings) {
-	QDataStream stream(&settings, QIODevice::ReadOnly);
-	stream.setVersion(QDataStream::Qt_5_1);
-	QString outputDeviceID;
-	QString inputDeviceID;
-	qint32 outputVolume;
-	qint32 inputVolume;
-	qint32 duckingEnabled;
-
-	stream >> outputDeviceID;
-	stream >> outputVolume;
-	stream >> inputDeviceID;
-	stream >> inputVolume;
-	stream >> duckingEnabled;
-	if (CheckStreamStatus(stream)) {
-		Global::SetCallOutputDeviceID(outputDeviceID);
-		Global::SetCallOutputVolume(outputVolume);
-		Global::SetCallInputDeviceID(inputDeviceID);
-		Global::SetCallInputVolume(inputVolume);
-		Global::SetCallAudioDuckingEnabled(duckingEnabled);
-	}
-}
-
 void Account::writeSessionSettings() {
 	writeSessionSettings(nullptr);
 }
@@ -774,7 +736,6 @@ void Account::writeSessionSettings(Main::SessionSettings *stored) {
 	auto userData = userDataInstance
 		? userDataInstance->serialize()
 		: QByteArray();
-	auto callSettings = serializeCallSettings();
 
 	auto recentStickers = cRecentStickersPreload();
 	if (recentStickers.isEmpty() && _owner->sessionExists()) {
@@ -786,7 +747,7 @@ void Account::writeSessionSettings(Main::SessionSettings *stored) {
 	}
 
 	uint32 size = 24 * (sizeof(quint32) + sizeof(qint32));
-	size += sizeof(quint32) + Serialize::stringSize(Global::AskDownloadPath() ? QString() : Global::DownloadPath()) + Serialize::bytearraySize(Global::AskDownloadPath() ? QByteArray() : Global::DownloadPathBookmark());
+	size += sizeof(quint32);
 
 	size += sizeof(quint32) + sizeof(qint32);
 	for (auto &item : recentEmojiPreloadData) {
@@ -801,40 +762,20 @@ void Account::writeSessionSettings(Main::SessionSettings *stored) {
 	if (!userData.isEmpty()) {
 		size += sizeof(quint32) + Serialize::bytearraySize(userData);
 	}
-	size += sizeof(quint32) + Serialize::bytearraySize(callSettings);
-
-	const auto soundFlashBounce = (Global::SoundNotify() ? 0x01 : 0x00)
-		| (Global::FlashBounceNotify() ? 0x00 : 0x02);
 
 	EncryptedDescriptor data(size);
 	data.stream
 		<< quint32(dbiTileBackground)
 		<< qint32(Window::Theme::Background()->tileDay() ? 1 : 0)
 		<< qint32(Window::Theme::Background()->tileNight() ? 1 : 0);
-	data.stream << quint32(dbiAdaptiveForWide) << qint32(Global::AdaptiveForWide() ? 1 : 0);
-	data.stream << quint32(dbiAutoLock) << qint32(Global::AutoLock());
-	data.stream << quint32(dbiSoundFlashBounceNotify) << qint32(soundFlashBounce);
-	data.stream << quint32(dbiDesktopNotify) << qint32(Global::DesktopNotify());
-	data.stream << quint32(dbiNotifyView) << qint32(Global::NotifyView());
-	data.stream << quint32(dbiNativeNotifications) << qint32(Global::NativeNotifications());
-	data.stream << quint32(dbiNotificationsCount) << qint32(Global::NotificationsCount());
-	data.stream << quint32(dbiNotificationsCorner) << qint32(Global::NotificationsCorner());
-	data.stream << quint32(dbiAskDownloadPath) << qint32(Global::AskDownloadPath());
-	data.stream << quint32(dbiDownloadPath) << (Global::AskDownloadPath() ? QString() : Global::DownloadPath()) << (Global::AskDownloadPath() ? QByteArray() : Global::DownloadPathBookmark());
-	data.stream << quint32(dbiSongVolume) << qint32(qRound(Global::SongVolume() * 1e6));
-	data.stream << quint32(dbiVideoVolume) << qint32(qRound(Global::VideoVolume() * 1e6));
-	data.stream << quint32(dbiDialogsFilters) << qint32(Global::DialogsFiltersEnabled() ? 1 : 0);
-	data.stream << quint32(dbiModerateMode) << qint32(Global::ModerateModeEnabled() ? 1 : 0);
 	data.stream << quint32(dbiUseExternalVideoPlayer) << qint32(cUseExternalVideoPlayer());
 	data.stream << quint32(dbiCacheSettings) << qint64(_cacheTotalSizeLimit) << qint32(_cacheTotalTimeLimit) << qint64(_cacheBigFileTotalSizeLimit) << qint32(_cacheBigFileTotalTimeLimit);
 	if (!userData.isEmpty()) {
 		data.stream << quint32(dbiSessionSettings) << userData;
 	}
-	data.stream << quint32(dbiPlaybackSpeed) << qint32(Global::VoiceMsgPlaybackDoubled() ? 2 : 1);
 	data.stream << quint32(dbiRecentEmoji) << recentEmojiPreloadData;
 	data.stream << quint32(dbiEmojiVariants) << cEmojiVariants();
 	data.stream << quint32(dbiRecentStickers) << recentStickers;
-	data.stream << qint32(dbiCallSettings) << callSettings;
 
 	FileWriteDescriptor file(_settingsKey, _basePath);
 	file.writeEncrypted(data, _localKey);
@@ -892,9 +833,6 @@ std::unique_ptr<Main::SessionSettings> Account::applyReadContext(
 	_cacheBigFileTotalSizeLimit = context.cacheBigFileTotalSizeLimit;
 	_cacheBigFileTotalTimeLimit = context.cacheBigFileTotalTimeLimit;
 
-	if (!context.callSettings.isEmpty()) {
-		deserializeCallSettings(context.callSettings);
-	}
 	if (!context.mtpAuthorization.isEmpty()) {
 		_owner->setMtpAuthorization(context.mtpAuthorization);
 	} else {
diff --git a/Telegram/SourceFiles/storage/storage_account.h b/Telegram/SourceFiles/storage/storage_account.h
index 728987f7e..eb922fb64 100644
--- a/Telegram/SourceFiles/storage/storage_account.h
+++ b/Telegram/SourceFiles/storage/storage_account.h
@@ -180,9 +180,6 @@ private:
 	std::unique_ptr<Main::SessionSettings> applyReadContext(
 		details::ReadSettingsContext &&context);
 
-	[[nodiscard]] QByteArray serializeCallSettings();
-	void deserializeCallSettings(QByteArray &settings);
-
 	void readDraftCursors(
 		const PeerId &peer,
 		MessageCursor &localCursor,
diff --git a/Telegram/SourceFiles/storage/storage_accounts.cpp b/Telegram/SourceFiles/storage/storage_domain.cpp
similarity index 85%
rename from Telegram/SourceFiles/storage/storage_accounts.cpp
rename to Telegram/SourceFiles/storage/storage_domain.cpp
index 5626226a1..32170246a 100644
--- a/Telegram/SourceFiles/storage/storage_accounts.cpp
+++ b/Telegram/SourceFiles/storage/storage_domain.cpp
@@ -5,12 +5,12 @@ the official desktop application for the Telegram messaging service.
 For license and copyright information please follow this link:
 https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 
 #include "storage/details/storage_file_utilities.h"
 #include "storage/serialize_common.h"
 #include "mtproto/mtproto_config.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_account.h"
 #include "facades.h"
 
@@ -19,8 +19,6 @@ namespace {
 
 using namespace details;
 
-constexpr auto kMaxAccounts = 3;
-
 [[nodiscard]] QString BaseGlobalPath() {
 	return cWorkingDir() + qsl("tdata/");
 }
@@ -39,14 +37,14 @@ constexpr auto kMaxAccounts = 3;
 
 } // namespace
 
-Accounts::Accounts(not_null<Main::Accounts*> owner, const QString &dataName)
+Domain::Domain(not_null<Main::Domain*> owner, const QString &dataName)
 : _owner(owner)
 , _dataName(dataName) {
 }
 
-Accounts::~Accounts() = default;
+Domain::~Domain() = default;
 
-StartResult Accounts::start(const QByteArray &passcode) {
+StartResult Domain::start(const QByteArray &passcode) {
 	const auto modern = startModern(passcode);
 	if (modern == StartModernResult::Success) {
 		if (_oldVersion < AppVersion) {
@@ -59,7 +57,7 @@ StartResult Accounts::start(const QByteArray &passcode) {
 		startFromScratch();
 		return StartResult::Success;
 	}
-	auto legacy = std::make_unique<Main::Account>(_dataName, 0);
+	auto legacy = std::make_unique<Main::Account>(_owner, _dataName, 0);
 	const auto result = legacy->legacyStart(passcode);
 	if (result == StartResult::Success) {
 		_oldVersion = legacy->local().oldMapVersion();
@@ -68,7 +66,7 @@ StartResult Accounts::start(const QByteArray &passcode) {
 	return result;
 }
 
-void Accounts::startAdded(
+void Domain::startAdded(
 		not_null<Main::Account*> account,
 		std::unique_ptr<MTP::Config> config) {
 	Expects(_localKey != nullptr);
@@ -77,7 +75,7 @@ void Accounts::startAdded(
 	account->start(std::move(config));
 }
 
-void Accounts::startWithSingleAccount(
+void Domain::startWithSingleAccount(
 		const QByteArray &passcode,
 		std::unique_ptr<Main::Account> account) {
 	Expects(account != nullptr);
@@ -93,7 +91,7 @@ void Accounts::startWithSingleAccount(
 	writeAccounts();
 }
 
-void Accounts::generateLocalKey() {
+void Domain::generateLocalKey() {
 	Expects(_localKey == nullptr);
 	Expects(_passcodeKeySalt.isEmpty());
 	Expects(_passcodeKeyEncrypted.isEmpty());
@@ -107,7 +105,7 @@ void Accounts::generateLocalKey() {
 	encryptLocalKey(QByteArray());
 }
 
-void Accounts::encryptLocalKey(const QByteArray &passcode) {
+void Domain::encryptLocalKey(const QByteArray &passcode) {
 	_passcodeKeySalt.resize(LocalEncryptSaltSize);
 	memset_rand(_passcodeKeySalt.data(), _passcodeKeySalt.size());
 	_passcodeKey = CreateLocalKey(passcode, _passcodeKeySalt);
@@ -117,7 +115,7 @@ void Accounts::encryptLocalKey(const QByteArray &passcode) {
 	_passcodeKeyEncrypted = PrepareEncrypted(passKeyData, _passcodeKey);
 }
 
-Accounts::StartModernResult Accounts::startModern(
+Domain::StartModernResult Domain::startModern(
 		const QByteArray &passcode) {
 	const auto name = ComputeKeyName(_dataName);
 
@@ -163,7 +161,7 @@ Accounts::StartModernResult Accounts::startModern(
 	LOG(("App Info: reading encrypted info..."));
 	auto count = qint32();
 	info.stream >> count;
-	if (count <= 0 || count > kMaxAccounts) {
+	if (count <= 0 || count > Main::Domain::kMaxAccounts) {
 		LOG(("App Error: bad accounts count: %1").arg(count));
 		return StartModernResult::Failed;
 	}
@@ -176,9 +174,12 @@ Accounts::StartModernResult Accounts::startModern(
 		auto index = qint32();
 		info.stream >> index;
 		if (index >= 0
-			&& index < kMaxAccounts
+			&& index < Main::Domain::kMaxAccounts
 			&& tried.emplace(index).second) {
-			auto account = std::make_unique<Main::Account>(_dataName, index);
+			auto account = std::make_unique<Main::Account>(
+				_owner,
+				_dataName,
+				index);
 			auto config = account->prepareToStart(_localKey);
 			const auto userId = account->willHaveUserId();
 			if (!users.contains(userId)
@@ -194,8 +195,8 @@ Accounts::StartModernResult Accounts::startModern(
 	return StartModernResult::Success;
 }
 
-void Accounts::writeAccounts() {
-	Expects(!_owner->list().empty());
+void Domain::writeAccounts() {
+	Expects(!_owner->accounts().empty());
 
 	const auto path = BaseGlobalPath();
 	if (!QDir().exists(path)) {
@@ -206,7 +207,7 @@ void Accounts::writeAccounts() {
 	key.writeData(_passcodeKeySalt);
 	key.writeData(_passcodeKeyEncrypted);
 
-	const auto &list = _owner->list();
+	const auto &list = _owner->accounts();
 	const auto active = _owner->activeIndex();
 
 	auto keySize = sizeof(qint32) + sizeof(qint32) * list.size();
@@ -222,13 +223,13 @@ void Accounts::writeAccounts() {
 	key.writeEncrypted(keyData, _localKey);
 }
 
-void Accounts::startFromScratch() {
+void Domain::startFromScratch() {
 	startWithSingleAccount(
 		QByteArray(),
-		std::make_unique<Main::Account>(_dataName, 0));
+		std::make_unique<Main::Account>(_owner, _dataName, 0));
 }
 
-bool Accounts::checkPasscode(const QByteArray &passcode) const {
+bool Domain::checkPasscode(const QByteArray &passcode) const {
 	Expects(!_passcodeKeySalt.isEmpty());
 	Expects(_passcodeKey != nullptr);
 
@@ -236,7 +237,7 @@ bool Accounts::checkPasscode(const QByteArray &passcode) const {
 	return checkKey->equals(_passcodeKey);
 }
 
-void Accounts::setPasscode(const QByteArray &passcode) {
+void Domain::setPasscode(const QByteArray &passcode) {
 	Expects(!_passcodeKeySalt.isEmpty());
 	Expects(_localKey != nullptr);
 
@@ -247,11 +248,11 @@ void Accounts::setPasscode(const QByteArray &passcode) {
 	Global::RefLocalPasscodeChanged().notify();
 }
 
-int Accounts::oldVersion() const {
+int Domain::oldVersion() const {
 	return _oldVersion;
 }
 
-void Accounts::clearOldVersion() {
+void Domain::clearOldVersion() {
 	_oldVersion = 0;
 }
 
diff --git a/Telegram/SourceFiles/storage/storage_accounts.h b/Telegram/SourceFiles/storage/storage_domain.h
similarity index 88%
rename from Telegram/SourceFiles/storage/storage_accounts.h
rename to Telegram/SourceFiles/storage/storage_domain.h
index 9434f8a67..1c78f6e0b 100644
--- a/Telegram/SourceFiles/storage/storage_accounts.h
+++ b/Telegram/SourceFiles/storage/storage_domain.h
@@ -15,7 +15,7 @@ using AuthKeyPtr = std::shared_ptr<AuthKey>;
 
 namespace Main {
 class Account;
-class Accounts;
+class Domain;
 } // namespace Main
 
 namespace Storage {
@@ -25,10 +25,10 @@ enum class StartResult : uchar {
 	IncorrectPasscode,
 };
 
-class Accounts final {
+class Domain final {
 public:
-	Accounts(not_null<Main::Accounts*> owner, const QString &dataName);
-	~Accounts();
+	Domain(not_null<Main::Domain*> owner, const QString &dataName);
+	~Domain();
 
 	[[nodiscard]] StartResult start(const QByteArray &passcode);
 	void startAdded(
@@ -57,9 +57,8 @@ private:
 		std::unique_ptr<Main::Account> account);
 	void generateLocalKey();
 	void encryptLocalKey(const QByteArray &passcode);
-	void writeInfo();
 
-	const not_null<Main::Accounts*> _owner;
+	const not_null<Main::Domain*> _owner;
 	const QString _dataName;
 
 	MTP::AuthKeyPtr _localKey;
diff --git a/Telegram/SourceFiles/support/support_helper.cpp b/Telegram/SourceFiles/support/support_helper.cpp
index ab70bf740..5b73d2c00 100644
--- a/Telegram/SourceFiles/support/support_helper.cpp
+++ b/Telegram/SourceFiles/support/support_helper.cpp
@@ -27,8 +27,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_media_prepare.h"
 #include "storage/localimageloader.h"
 #include "core/sandbox.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "apiwrap.h"
 #include "facades.h"
 #include "styles/style_layers.h"
@@ -79,10 +80,10 @@ EditInfoBox::EditInfoBox(
 , _submit(std::move(submit)) {
 	_field->setMaxLength(kMaxSupportInfoLength);
 	_field->setSubmitSettings(
-		controller->session().settings().sendSubmitWay());
+		Core::App().settings().sendSubmitWay());
 	_field->setInstantReplaces(Ui::InstantReplaces::Default());
 	_field->setInstantReplacesEnabled(
-		controller->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	_field->setMarkdownReplacesEnabled(rpl::single(true));
 	_field->setEditLinkCallback(DefaultEditLinkCallback(controller, _field));
 }
diff --git a/Telegram/SourceFiles/window/main_window.cpp b/Telegram/SourceFiles/window/main_window.cpp
index 2dda52102..ebe6dad15 100644
--- a/Telegram/SourceFiles/window/main_window.cpp
+++ b/Telegram/SourceFiles/window/main_window.cpp
@@ -264,14 +264,18 @@ bool MainWindow::hideNoQuit() {
 	}
 	if (Global::WorkMode().value() == dbiwmTrayOnly || Global::WorkMode().value() == dbiwmWindowAndTray) {
 		if (minimizeToTray()) {
-			Ui::showChatsList();
+			if (const auto controller = sessionController()) {
+				Ui::showChatsList(&controller->session());
+			}
 			return true;
 		}
 	} else if (Platform::IsMac()) {
 		closeWithoutDestroy();
 		controller().updateIsActiveBlur();
 		updateGlobalMenu();
-		Ui::showChatsList();
+		if (const auto controller = sessionController()) {
+			Ui::showChatsList(&controller->session());
+		}
 		return true;
 	}
 	return false;
@@ -529,7 +533,9 @@ void MainWindow::updateControlsGeometry() {
 }
 
 void MainWindow::updateUnreadCounter() {
-	if (!Global::started() || App::quitting()) return;
+	if (App::quitting()) {
+		return;
+	}
 
 	const auto counter = Core::App().unreadBadge();
 	_titleText = (counter > 0) ? qsl("Telegram (%1)").arg(counter) : qsl("Telegram");
diff --git a/Telegram/SourceFiles/window/notifications_manager.cpp b/Telegram/SourceFiles/window/notifications_manager.cpp
index 12ace85d9..e527268e6 100644
--- a/Telegram/SourceFiles/window/notifications_manager.cpp
+++ b/Telegram/SourceFiles/window/notifications_manager.cpp
@@ -25,8 +25,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_updates.h"
 #include "apiwrap.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "facades.h"
 #include "app.h"
 
@@ -62,7 +61,7 @@ System::System(not_null<Main::Session*> session)
 			updateAll();
 		} else if (type == ChangeType::IncludeMuted
 			|| type == ChangeType::CountMessages) {
-			Core::App().accounts().notifyUnreadBadgeChanged();
+			Core::App().domain().notifyUnreadBadgeChanged();
 		}
 	});
 }
@@ -138,7 +137,8 @@ void System::schedule(not_null<HistoryItem*> item) {
 	if (!skip.silent) {
 		_whenAlerts[history].insert(when, notifyBy);
 	}
-	if (Global::DesktopNotify() && !Platform::Notifications::SkipToast()) {
+	if (Core::App().settings().desktopNotify()
+		&& !Platform::Notifications::SkipToast()) {
 		auto &whenMap = _whenMaps[history];
 		if (whenMap.constFind(item->id) == whenMap.cend()) {
 			whenMap.insert(item->id, when);
@@ -302,8 +302,9 @@ void System::showNext() {
 			++i;
 		}
 	}
+	const auto &settings = Core::App().settings();
 	if (alert) {
-		if (Global::FlashBounceNotify() && !Platform::Notifications::SkipFlashBounce()) {
+		if (settings.flashBounceNotify() && !Platform::Notifications::SkipFlashBounce()) {
 			if (const auto widget = App::wnd()) {
 				if (const auto window = widget->windowHandle()) {
 					window->alert(kSystemAlertDuration);
@@ -311,7 +312,7 @@ void System::showNext() {
 				}
 			}
 		}
-		if (Global::SoundNotify() && !Platform::Notifications::SkipAudio()) {
+		if (settings.soundNotify() && !Platform::Notifications::SkipAudio()) {
 			ensureSoundCreated();
 			_soundTrack->playOnce();
 			emit Media::Player::mixer()->suppressAll(_soundTrack->getLengthMs());
@@ -319,7 +320,7 @@ void System::showNext() {
 		}
 	}
 
-	if (_waiters.isEmpty() || !Global::DesktopNotify() || Platform::Notifications::SkipToast()) {
+	if (_waiters.isEmpty() || !settings.desktopNotify() || Platform::Notifications::SkipToast()) {
 		if (nextAlert) {
 			_waitTimer.callOnce(nextAlert - ms);
 		}
@@ -474,7 +475,7 @@ void System::ensureSoundCreated() {
 
 	_soundTrack = Media::Audio::Current().createTrack();
 	_soundTrack->fillFromFile(
-		session().settings().getSoundPath(qsl("msg_incoming")));
+		Core::App().settings().getSoundPath(qsl("msg_incoming")));
 }
 
 void System::updateAll() {
@@ -485,11 +486,10 @@ Manager::DisplayOptions Manager::getNotificationOptions(HistoryItem *item) {
 	const auto hideEverything = Core::App().locked()
 		|| Global::ScreenIsLocked();
 
+	const auto view = Core::App().settings().notifyView();
 	DisplayOptions result;
-	result.hideNameAndPhoto = hideEverything
-		|| (Global::NotifyView() > dbinvShowName);
-	result.hideMessageText = hideEverything
-		|| (Global::NotifyView() > dbinvShowPreview);
+	result.hideNameAndPhoto = hideEverything || (view > dbinvShowName);
+	result.hideMessageText = hideEverything || (view > dbinvShowPreview);
 	result.hideReplyButton = result.hideMessageText
 		|| !item
 		|| ((item->out() || item->history()->peer->isSelf())
diff --git a/Telegram/SourceFiles/window/notifications_manager_default.cpp b/Telegram/SourceFiles/window/notifications_manager_default.cpp
index b976775c8..c528fe774 100644
--- a/Telegram/SourceFiles/window/notifications_manager_default.cpp
+++ b/Telegram/SourceFiles/window/notifications_manager_default.cpp
@@ -21,7 +21,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/themes/window_theme.h"
 #include "storage/file_download.h"
 #include "main/main_session.h"
-#include "main/main_session_settings.h"
 #include "history/history.h"
 #include "history/history_item.h"
 #include "platform/platform_specific.h"
@@ -45,16 +44,17 @@ int notificationMaxHeight() {
 }
 
 QPoint notificationStartPosition() {
-	auto r = psDesktopRect();
-	auto isLeft = Notify::IsLeftCorner(Global::NotificationsCorner());
-	auto isTop = Notify::IsTopCorner(Global::NotificationsCorner());
-	auto x = (isLeft == rtl()) ? (r.x() + r.width() - st::notifyWidth - st::notifyDeltaX) : (r.x() + st::notifyDeltaX);
-	auto y = isTop ? r.y() : (r.y() + r.height());
+	const auto corner = Core::App().settings().notificationsCorner();
+	const auto r = psDesktopRect();
+	const auto isLeft = Core::Settings::IsLeftCorner(corner);
+	const auto isTop = Core::Settings::IsTopCorner(corner);
+	const auto x = (isLeft == rtl()) ? (r.x() + r.width() - st::notifyWidth - st::notifyDeltaX) : (r.x() + st::notifyDeltaX);
+	const auto y = isTop ? r.y() : (r.y() + r.height());
 	return QPoint(x, y);
 }
 
 internal::Widget::Direction notificationShiftDirection() {
-	auto isTop = Notify::IsTopCorner(Global::NotificationsCorner());
+	auto isTop = Core::Settings::IsTopCorner(Core::App().settings().notificationsCorner());
 	return isTop ? internal::Widget::Direction::Down : internal::Widget::Direction::Up;
 }
 
@@ -116,7 +116,7 @@ void Manager::settingsChanged(ChangeType change) {
 			_hideAll->updatePosition(startPosition, shiftDirection);
 		}
 	} else if (change == ChangeType::MaxCount) {
-		int allow = Global::NotificationsCount();
+		int allow = Core::App().settings().notificationsCount();
 		for (int i = _notifications.size(); i != 0;) {
 			auto &notification = _notifications[--i];
 			if (notification->isUnlinked()) continue;
@@ -196,7 +196,7 @@ void Manager::showNextFromQueue() {
 	if (_queuedNotifications.empty()) {
 		return;
 	}
-	int count = Global::NotificationsCount();
+	int count = Core::App().settings().notificationsCount();
 	for_const (auto &notification, _notifications) {
 		if (notification->isUnlinked()) continue;
 		--count;
@@ -833,7 +833,7 @@ bool Notification::canReply() const {
 	return !_hideReplyButton
 		&& (_item != nullptr)
 		&& !Core::App().locked()
-		&& (Global::NotifyView() <= dbinvShowPreview);
+		&& (Core::App().settings().notifyView() <= dbinvShowPreview);
 }
 
 void Notification::unlinkHistoryInManager() {
@@ -878,7 +878,7 @@ void Notification::showReplyField() {
 	_replyArea->setSubmitSettings(Ui::InputField::SubmitSettings::Both);
 	_replyArea->setInstantReplaces(Ui::InstantReplaces::Default());
 	_replyArea->setInstantReplacesEnabled(
-		_item->history()->session().settings().replaceEmojiValue());
+		Core::App().settings().replaceEmojiValue());
 	_replyArea->setMarkdownReplacesEnabled(rpl::single(true));
 
 	// Catch mouse press event to activate the window.
diff --git a/Telegram/SourceFiles/window/themes/window_theme.cpp b/Telegram/SourceFiles/window/themes/window_theme.cpp
index e6f3b8912..f5f8bbc8d 100644
--- a/Telegram/SourceFiles/window/themes/window_theme.cpp
+++ b/Telegram/SourceFiles/window/themes/window_theme.cpp
@@ -23,7 +23,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/crc32hash.h"
 #include "data/data_session.h"
 #include "main/main_account.h" // Account::local.
-#include "main/main_accounts.h" // Accounts::activeSessionValue.
+#include "main/main_domain.h" // Domain::activeSessionValue.
 #include "ui/image/image.h"
 #include "boxes/background_box.h"
 #include "core/application.h"
@@ -548,7 +548,7 @@ void ChatBackground::start() {
 		set(Data::ThemeWallPaper());
 	}
 
-	Core::App().accounts().activeSessionValue(
+	Core::App().domain().activeSessionValue(
 	) | rpl::filter([=](Main::Session *session) {
 		return session != _session;
 	}) | rpl::start_with_next([=](Main::Session *session) {
diff --git a/Telegram/SourceFiles/window/window_controller.cpp b/Telegram/SourceFiles/window/window_controller.cpp
index b906131ff..26576a73f 100644
--- a/Telegram/SourceFiles/window/window_controller.cpp
+++ b/Telegram/SourceFiles/window/window_controller.cpp
@@ -9,8 +9,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "core/application.h"
 #include "main/main_account.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "main/main_session.h"
+#include "main/main_session_settings.h"
 #include "mtproto/mtproto_config.h"
 #include "ui/layers/box_content.h"
 #include "ui/layers/layer_widget.h"
@@ -58,7 +59,7 @@ void Controller::showAccount(not_null<Main::Account*> account) {
 				sideBarChanged();
 			}, session->lifetime());
 		}
-		if (_sessionController && Global::DialogsFiltersEnabled()) {
+		if (session && session->settings().dialogsFiltersEnabled()) {
 			_sessionController->toggleFiltersMenu(true);
 		} else {
 			sideBarChanged();
diff --git a/Telegram/SourceFiles/window/window_lock_widgets.cpp b/Telegram/SourceFiles/window/window_lock_widgets.cpp
index 7ae4b9199..4ee071e5e 100644
--- a/Telegram/SourceFiles/window/window_lock_widgets.cpp
+++ b/Telegram/SourceFiles/window/window_lock_widgets.cpp
@@ -8,7 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_lock_widgets.h"
 
 #include "lang/lang_keys.h"
-#include "storage/storage_accounts.h"
+#include "storage/storage_domain.h"
 #include "mainwindow.h"
 #include "core/application.h"
 #include "api/api_text_entities.h"
@@ -22,7 +22,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_controller.h"
 #include "window/window_slide_animation.h"
 #include "window/window_session_controller.h"
-#include "main/main_accounts.h"
+#include "main/main_domain.h"
 #include "facades.h"
 #include "styles/style_layers.h"
 #include "styles/style_boxes.h"
@@ -76,7 +76,9 @@ void LockWidget::animationCallback() {
 void LockWidget::showFinished() {
 	showChildren();
 	_window->widget()->setInnerFocus();
-	Ui::showChatsList();
+	if (const auto controller = _window->sessionController()) {
+		Ui::showChatsList(&controller->session());
+	}
 	_cacheUnder = _cacheOver = QPixmap();
 }
 
@@ -149,10 +151,10 @@ void PasscodeLockWidget::submit() {
 	}
 
 	const auto passcode = _passcode->text().toUtf8();
-	auto &accounts = Core::App().accounts();
-	const auto correct = accounts.started()
-		? accounts.local().checkPasscode(passcode)
-		: (accounts.start(passcode)
+	auto &domain = Core::App().domain();
+	const auto correct = domain.started()
+		? domain.local().checkPasscode(passcode)
+		: (domain.start(passcode)
 			!= Storage::StartResult::IncorrectPasscode);
 	if (!correct) {
 		cSetPasscodeBadTries(cPasscodeBadTries() + 1);
diff --git a/Telegram/SourceFiles/window/window_session_controller.cpp b/Telegram/SourceFiles/window/window_session_controller.cpp
index 939a1b21a..c1a7a2e0f 100644
--- a/Telegram/SourceFiles/window/window_session_controller.cpp
+++ b/Telegram/SourceFiles/window/window_session_controller.cpp
@@ -217,8 +217,8 @@ void SessionController::toggleFiltersMenu(bool enabled) {
 
 void SessionController::refreshFiltersMenu() {
 	const auto enabled = !session().data().chatsFilters().list().empty();
-	if (enabled != Global::DialogsFiltersEnabled()) {
-		Global::SetDialogsFiltersEnabled(enabled);
+	if (enabled != session().settings().dialogsFiltersEnabled()) {
+		session().settings().setDialogsFiltersEnabled(enabled);
 		session().saveSettingsDelayed();
 		toggleFiltersMenu(enabled);
 	}
@@ -801,7 +801,7 @@ void SessionController::setActiveChatsFilter(FilterId id) {
 		closeFolder();
 	}
 	if (Adaptive::OneColumn()) {
-		Ui::showChatsList();
+		Ui::showChatsList(&session());
 	}
 }