diff --git a/Telegram/SourceFiles/core/application.cpp b/Telegram/SourceFiles/core/application.cpp
index d40f8a3be..05d86122e 100644
--- a/Telegram/SourceFiles/core/application.cpp
+++ b/Telegram/SourceFiles/core/application.cpp
@@ -103,7 +103,6 @@ Application::Application(not_null<Launcher*> launcher)
 , _langCloudManager(std::make_unique<Lang::CloudManager>(langpack()))
 , _emojiKeywords(std::make_unique<ChatHelpers::EmojiKeywords>())
 , _audio(std::make_unique<Media::Audio::Instance>())
-, _notifications(std::make_unique<Window::Notifications::System>())
 , _logo(Window::LoadLogo())
 , _logoNoMargin(Window::LoadLogoNoMargin())
 , _autoLockTimer([=] { checkAutoLock(); }) {
@@ -180,7 +179,10 @@ void Application::run() {
 
 	ThirdParty::start();
 	Global::start();
-	refreshGlobalProxy(); // Depends on Global::started().
+	refreshGlobalProxy(); // Depends on Global::start().
+
+	// Depends on OpenSSL on macOS, so on ThirdParty::start().
+	_notifications = std::make_unique<Window::Notifications::System>();
 
 	startLocalStorage();
 	ValidateScale();
diff --git a/Telegram/SourceFiles/core/application.h b/Telegram/SourceFiles/core/application.h
index f3abac6c0..fefedeb62 100644
--- a/Telegram/SourceFiles/core/application.h
+++ b/Telegram/SourceFiles/core/application.h
@@ -108,6 +108,8 @@ public:
 		return *_animationsManager;
 	}
 	[[nodiscard]] Window::Notifications::System &notifications() const {
+		Expects(_notifications != nullptr);
+
 		return *_notifications;
 	}
 
@@ -305,7 +307,8 @@ private:
 	const std::unique_ptr<Media::Audio::Instance> _audio;
 
 	// Notifications should be destroyed before _audio.
-	const std::unique_ptr<Window::Notifications::System> _notifications;
+	// Mutable because is created in run() after OpenSSL is inited.
+	std::unique_ptr<Window::Notifications::System> _notifications;
 
 	const QImage _logo;
 	const QImage _logoNoMargin;
diff --git a/Telegram/SourceFiles/history/view/history_view_top_bar_widget.h b/Telegram/SourceFiles/history/view/history_view_top_bar_widget.h
index feaca96cc..218323c53 100644
--- a/Telegram/SourceFiles/history/view/history_view_top_bar_widget.h
+++ b/Telegram/SourceFiles/history/view/history_view_top_bar_widget.h
@@ -156,7 +156,6 @@ private:
 	bool _animatingMode = false;
 	std::unique_ptr<Ui::InfiniteRadialAnimation> _connecting;
 
-	int _unreadCounterSubscription = 0;
 	base::Timer _onlineUpdater;
 
 	rpl::event_stream<> _forwardSelection;
diff --git a/Telegram/SourceFiles/main/main_account.cpp b/Telegram/SourceFiles/main/main_account.cpp
index 2ec05db8e..c3a5a3f66 100644
--- a/Telegram/SourceFiles/main/main_account.cpp
+++ b/Telegram/SourceFiles/main/main_account.cpp
@@ -499,7 +499,6 @@ void Account::forcedLogOut() {
 void Account::loggedOut() {
 	_loggingOut = false;
 	Media::Player::mixer()->stopAndClear();
-	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_domain.cpp b/Telegram/SourceFiles/main/main_domain.cpp
index 12c923237..536a33164 100644
--- a/Telegram/SourceFiles/main/main_domain.cpp
+++ b/Telegram/SourceFiles/main/main_domain.cpp
@@ -66,6 +66,10 @@ void Domain::activateFromStorage(int index) {
 	_accountToActivate = index;
 }
 
+int Domain::activeForStorage() const {
+	return _accountToActivate;
+}
+
 void Domain::resetWithForgottenPasscode() {
 	if (_accounts.empty()) {
 		_local->startFromScratch();
diff --git a/Telegram/SourceFiles/main/main_domain.h b/Telegram/SourceFiles/main/main_domain.h
index 9d572b123..96b9e681b 100644
--- a/Telegram/SourceFiles/main/main_domain.h
+++ b/Telegram/SourceFiles/main/main_domain.h
@@ -66,6 +66,7 @@ public:
 	// Interface for Storage::Domain.
 	void accountAddedInStorage(AccountWithIndex accountWithIndex);
 	void activateFromStorage(int index);
+	[[nodiscard]] int activeForStorage() const;
 
 private:
 	void activateAfterStarting();
diff --git a/Telegram/SourceFiles/main/main_session_settings.h b/Telegram/SourceFiles/main/main_session_settings.h
index 22840e735..fde64675c 100644
--- a/Telegram/SourceFiles/main/main_session_settings.h
+++ b/Telegram/SourceFiles/main/main_session_settings.h
@@ -29,7 +29,7 @@ public:
 	SessionSettings();
 
 	[[nodiscard]] QByteArray serialize() const;
-	[[nodiscard]] void addFromSerialized(const QByteArray &serialized);
+	void addFromSerialized(const QByteArray &serialized);
 
 	void setSupportSwitch(Support::SwitchSettings value) {
 		_supportSwitch = value;
diff --git a/Telegram/SourceFiles/platform/mac/notifications_manager_mac.mm b/Telegram/SourceFiles/platform/mac/notifications_manager_mac.mm
index 1a57be422..054c402c0 100644
--- a/Telegram/SourceFiles/platform/mac/notifications_manager_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/notifications_manager_mac.mm
@@ -12,6 +12,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/mac/base_utilities_mac.h"
 #include "history/history.h"
 #include "ui/empty_userpic.h"
+#include "main/main_session.h"
 #include "mainwindow.h"
 #include "facades.h"
 #include "styles/style_window.h"
@@ -91,28 +92,37 @@ NSImage *qt_mac_create_nsimage(const QPixmap &pm);
 		return;
 	}
 
+	NSNumber *selfObject = [notificationUserInfo objectForKey:@"self"];
+	const auto notificationSelfId = selfObject ? [selfObject intValue] : 0;
+	if (!notificationSelfId) {
+		LOG(("App Error: A notification with unknown self was received"));
+		return;
+	}
 	NSNumber *peerObject = [notificationUserInfo objectForKey:@"peer"];
-	auto notificationPeerId = peerObject ? [peerObject unsignedLongLongValue] : 0ULL;
+	const auto notificationPeerId = peerObject ? [peerObject unsignedLongLongValue] : 0ULL;
 	if (!notificationPeerId) {
 		LOG(("App Error: A notification with unknown peer was received"));
 		return;
 	}
 
 	NSNumber *msgObject = [notificationUserInfo objectForKey:@"msgid"];
-	auto notificationMsgId = msgObject ? [msgObject intValue] : 0;
+	const auto notificationMsgId = msgObject ? [msgObject intValue] : 0;
+
+	const auto my = Window::Notifications::Manager::NotificationId{
+		.peerId = notificationPeerId,
+		.msgId = notificationMsgId,
+		.selfId = notificationSelfId
+	};
 	if (notification.activationType == NSUserNotificationActivationTypeReplied) {
 		const auto notificationReply = QString::fromUtf8([[[notification response] string] UTF8String]);
 		const auto manager = _manager;
 		crl::on_main(manager, [=] {
-			manager->notificationReplied(
-				notificationPeerId,
-				notificationMsgId,
-				{ notificationReply, {} });
+			manager->notificationReplied(my, { notificationReply, {} });
 		});
 	} else if (notification.activationType == NSUserNotificationActivationTypeContentsClicked) {
 		const auto manager = _manager;
 		crl::on_main(manager, [=] {
-			manager->notificationActivated(notificationPeerId, notificationMsgId);
+			manager->notificationActivated(my);
 		});
 	}
 
@@ -194,13 +204,16 @@ private:
 	std::condition_variable _clearingCondition;
 
 	struct ClearFromHistory {
-		PeerId peerId;
+		FullPeer fullPeer;
+	};
+	struct ClearFromSession {
+		UserId selfId = 0;
 	};
 	struct ClearAll {
 	};
 	struct ClearFinish {
 	};
-	using ClearTask = base::variant<ClearFromHistory, ClearAll, ClearFinish>;
+	using ClearTask = base::variant<ClearFromHistory, ClearFromSession, ClearAll, ClearFinish>;
 	std::vector<ClearTask> _clearingTasks;
 
 };
@@ -236,7 +249,7 @@ void Manager::Private::showNotification(
 		auto identifierValue = Q2NSString(identifier);
 		[notification setIdentifier:identifierValue];
 	}
-	[notification setUserInfo:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithUnsignedLongLong:peer->id],@"peer",[NSNumber numberWithInt:msgId],@"msgid",[NSNumber numberWithUnsignedLongLong:_managerId],@"manager",nil]];
+	[notification setUserInfo:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithUnsignedLongLong:peer->session().userId()],@"self",[NSNumber numberWithUnsignedLongLong:peer->id],@"peer",[NSNumber numberWithInt:msgId],@"msgid",[NSNumber numberWithUnsignedLongLong:_managerId],@"manager",nil]];
 
 	[notification setTitle:Q2NSString(title)];
 	[notification setSubtitle:Q2NSString(subtitle)];
@@ -265,7 +278,8 @@ void Manager::Private::clearingThreadLoop() {
 	auto finished = false;
 	while (!finished) {
 		auto clearAll = false;
-		auto clearFromPeers = std::set<PeerId>(); // Better to use flatmap.
+		auto clearFromPeers = base::flat_set<FullPeer>();
+		auto clearFromSessions = base::flat_set<UserId>();
 		{
 			std::unique_lock<std::mutex> lock(_clearingMutex);
 
@@ -279,17 +293,25 @@ void Manager::Private::clearingThreadLoop() {
 				} else if (base::get_if<ClearAll>(&task)) {
 					clearAll = true;
 				} else if (auto fromHistory = base::get_if<ClearFromHistory>(&task)) {
-					clearFromPeers.insert(fromHistory->peerId);
+					clearFromPeers.emplace(fromHistory->fullPeer);
+				} else if (auto fromSession = base::get_if<ClearFromSession>(&task)) {
+					clearFromSessions.emplace(fromSession->selfId);
 				}
 			}
 			_clearingTasks.clear();
 		}
 
-		auto clearByPeer = [&clearFromPeers](NSDictionary *notificationUserInfo) {
+		auto clearBySpecial = [&](NSDictionary *notificationUserInfo) {
+			NSNumber *selfObject = [notificationUserInfo objectForKey:@"self"];
+			const auto notificationSelfId = selfObject ? [selfObject intValue] : 0;
+			if (!notificationSelfId) {
+				return true;
+			}
 			if (NSNumber *peerObject = [notificationUserInfo objectForKey:@"peer"]) {
-				auto notificationPeerId = [peerObject unsignedLongLongValue];
+				const auto notificationPeerId = [peerObject unsignedLongLongValue];
 				if (notificationPeerId) {
-					return (clearFromPeers.find(notificationPeerId) != clearFromPeers.cend());
+					return clearFromSessions.contains(notificationSelfId)
+						|| clearFromPeers.contains(FullPeer{ notificationPeerId, notificationSelfId });
 				}
 			}
 			return true;
@@ -302,7 +324,7 @@ void Manager::Private::clearingThreadLoop() {
 			NSNumber *managerIdObject = [notificationUserInfo objectForKey:@"manager"];
 			auto notificationManagerId = managerIdObject ? [managerIdObject unsignedLongLongValue] : 0ULL;
 			if (notificationManagerId == _managerId) {
-				if (clearAll || clearByPeer(notificationUserInfo)) {
+				if (clearAll || clearBySpecial(notificationUserInfo)) {
 					[center removeDeliveredNotification:notification];
 				}
 			}
@@ -326,11 +348,11 @@ void Manager::Private::clearAll() {
 }
 
 void Manager::Private::clearFromHistory(not_null<History*> history) {
-	putClearTask(ClearFromHistory { history->peer->id });
+	putClearTask(ClearFromHistory { FullPeer{ history->peer->id, history->session().userId() } });
 }
 
 void Manager::Private::clearFromSession(not_null<Main::Session*> session) {
-	putClearTask(); // #TODO multi
+	putClearTask(ClearFromSession { session->userId() });
 }
 
 void Manager::Private::updateDelegate() {
diff --git a/Telegram/SourceFiles/platform/mac/specific_mac.mm b/Telegram/SourceFiles/platform/mac/specific_mac.mm
index 00ab6fec0..d3668173f 100644
--- a/Telegram/SourceFiles/platform/mac/specific_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/specific_mac.mm
@@ -12,11 +12,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_widget.h"
 #include "core/crash_reports.h"
 #include "core/sandbox.h"
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "storage/localstorage.h"
 #include "mainwindow.h"
 #include "history/history_location_manager.h"
 #include "base/platform/mac/base_utilities_mac.h"
-#include "facades.h"
 
 #include <QtGui/QDesktopServices>
 #include <QtWidgets/QApplication>
@@ -279,7 +280,7 @@ void psSendToMenu(bool send, bool silent) {
 }
 
 void psDownloadPathEnableAccess() {
-	objc_downloadPathEnableAccess(Global::DownloadPathBookmark());
+	objc_downloadPathEnableAccess(Core::App().settings().downloadPathBookmark());
 }
 
 QByteArray psDownloadPathBookmark(const QString &path) {
diff --git a/Telegram/SourceFiles/platform/mac/window_title_mac.mm b/Telegram/SourceFiles/platform/mac/window_title_mac.mm
index b5428524f..22b88eabf 100644
--- a/Telegram/SourceFiles/platform/mac/window_title_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/window_title_mac.mm
@@ -42,7 +42,7 @@ TitleWidget::TitleWidget(MainWindow *parent, int height)
 		_font = st::normalFont;
 	}
 
-	Core::App().unreadBadgeValue(
+	Core::App().unreadBadgeChanges(
 	) | rpl::start_with_next([=] {
 		update();
 	}, lifetime());
diff --git a/Telegram/SourceFiles/settings/settings_calls.cpp b/Telegram/SourceFiles/settings/settings_calls.cpp
index b5cf1d3c1..68f14a305 100644
--- a/Telegram/SourceFiles/settings/settings_calls.cpp
+++ b/Telegram/SourceFiles/settings/settings_calls.cpp
@@ -293,12 +293,12 @@ void Calls::setupContent() {
 		tr::lng_settings_call_audio_ducking(),
 		st::settingsButton
 	)->toggleOn(
-		rpl::single(Global::CallAudioDuckingEnabled())
+		rpl::single(settings.callAudioDuckingEnabled())
 	)->toggledValue() | rpl::filter([](bool enabled) {
-		return (enabled != Global::CallAudioDuckingEnabled());
+		return (enabled != Core::App().settings().callAudioDuckingEnabled());
 	}) | rpl::start_with_next([=](bool enabled) {
-		Global::SetCallAudioDuckingEnabled(enabled);
-		_controller->session().saveSettingsDelayed();
+		Core::App().settings().setCallAudioDuckingEnabled(enabled);
+		Core::App().saveSettingsDelayed();
 		if (const auto call = _controller->session().calls().currentCall()) {
 			call->setAudioDuckingEnabled(enabled);
 		}
diff --git a/Telegram/SourceFiles/storage/storage_domain.cpp b/Telegram/SourceFiles/storage/storage_domain.cpp
index c3ac61a36..bdfb8d33b 100644
--- a/Telegram/SourceFiles/storage/storage_domain.cpp
+++ b/Telegram/SourceFiles/storage/storage_domain.cpp
@@ -222,18 +222,12 @@ void Domain::writeAccounts() {
 
 	auto keySize = sizeof(qint32) + sizeof(qint32) * list.size();
 
-	const auto active = &_owner->active();
-	auto activeIndex = -1;
-
 	EncryptedDescriptor keyData(keySize);
 	keyData.stream << qint32(list.size());
 	for (const auto &[index, account] : list) {
-		if (active == account.get()) {
-			activeIndex = index;
-		}
 		keyData.stream << qint32(index);
 	}
-	keyData.stream << qint32(activeIndex);
+	keyData.stream << qint32(_owner->activeForStorage());
 	key.writeEncrypted(keyData, _localKey);
 }
 
diff --git a/Telegram/SourceFiles/window/themes/window_theme.cpp b/Telegram/SourceFiles/window/themes/window_theme.cpp
index b89bc969a..b450964dc 100644
--- a/Telegram/SourceFiles/window/themes/window_theme.cpp
+++ b/Telegram/SourceFiles/window/themes/window_theme.cpp
@@ -535,13 +535,17 @@ void ChatBackground::setThemeData(QImage &&themeImage, bool themeTile) {
 	_themeTile = themeTile;
 }
 
-void ChatBackground::start() {
+void ChatBackground::initialRead() {
 	if (!Data::details::IsUninitializedWallPaper(_paper)) {
 		return;
 	}
 	if (!Local::readBackground()) {
 		set(Data::ThemeWallPaper());
 	}
+}
+
+void ChatBackground::start() {
+	initialRead();
 
 	Core::App().domain().activeSessionValue(
 	) | rpl::filter([=](Main::Session *session) {
@@ -851,16 +855,16 @@ bool ChatBackground::isMonoColorImage() const {
 	return _isMonoColorImage;
 }
 
-void ChatBackground::ensureStarted() {
+void ChatBackground::ensureInitialRead() {
 	if (_pixmap.isNull() && !_paper.backgroundColor()) {
 		// We should start first, otherwise the default call
-		// to start() will reset this value to _themeTile.
-		start();
+		// to initialRead() will reset this value to _themeTile.
+		initialRead();
 	}
 }
 
 void ChatBackground::setTile(bool tile) {
-	ensureStarted();
+	ensureInitialRead();
 	const auto old = this->tile();
 	if (nightMode()) {
 		setTileNightValue(tile);
@@ -877,12 +881,12 @@ void ChatBackground::setTile(bool tile) {
 }
 
 void ChatBackground::setTileDayValue(bool tile) {
-	ensureStarted();
+	ensureInitialRead();
 	_tileDayValue = tile;
 }
 
 void ChatBackground::setTileNightValue(bool tile) {
-	ensureStarted();
+	ensureInitialRead();
 	_tileNightValue = tile;
 }
 
@@ -917,7 +921,7 @@ void ChatBackground::reset() {
 }
 
 void ChatBackground::saveForRevert() {
-	ensureStarted();
+	ensureInitialRead();
 	if (!Data::details::IsTestingThemeWallPaper(_paper)
 		&& !Data::details::IsTestingDefaultWallPaper(_paper)) {
 		_paperForRevert = _paper;
@@ -1009,7 +1013,7 @@ void ChatBackground::keepApplied(const Object &object, bool write) {
 }
 
 bool ChatBackground::isNonDefaultThemeOrBackground() {
-	start();
+	initialRead();
 	return nightMode()
 		? (_themeObject.pathAbsolute != NightThemePath()
 			|| !Data::IsThemeWallPaper(_paper))
@@ -1018,7 +1022,7 @@ bool ChatBackground::isNonDefaultThemeOrBackground() {
 }
 
 bool ChatBackground::isNonDefaultBackground() {
-	start();
+	initialRead();
 	return _themeObject.pathAbsolute.isEmpty()
 		? !Data::IsDefaultWallPaper(_paper)
 		: !Data::IsThemeWallPaper(_paper);
diff --git a/Telegram/SourceFiles/window/themes/window_theme.h b/Telegram/SourceFiles/window/themes/window_theme.h
index be9833fb9..71715cbe2 100644
--- a/Telegram/SourceFiles/window/themes/window_theme.h
+++ b/Telegram/SourceFiles/window/themes/window_theme.h
@@ -129,11 +129,12 @@ class ChatBackground
 public:
 	ChatBackground();
 
+	void start();
+
 	// This method is allowed to (and should) be called before start().
 	void setThemeData(QImage &&themeImage, bool themeTile);
 
 	// This method is setting the default (themed) image if none was set yet.
-	void start();
 	void set(const Data::WallPaper &paper, QImage image = QImage());
 	void setTile(bool tile);
 	void setTileDayValue(bool tile);
@@ -177,7 +178,8 @@ private:
 		QColor original;
 	};
 
-	void ensureStarted();
+	void initialRead();
+	void ensureInitialRead();
 	void saveForRevert();
 	void setPreparedImage(QImage original, QImage prepared);
 	void preparePixmaps(QImage image);
diff --git a/Telegram/SourceFiles/window/window_title.h b/Telegram/SourceFiles/window/window_title.h
index 50260a354..3226b3763 100644
--- a/Telegram/SourceFiles/window/window_title.h
+++ b/Telegram/SourceFiles/window/window_title.h
@@ -26,9 +26,9 @@ enum class HitTestResult {
 	TopLeft,
 };
 
-class TitleWidget : public TWidget {
+class TitleWidget : public Ui::RpWidget {
 public:
-	using TWidget::TWidget;
+	using RpWidget::RpWidget;
 
 	virtual void init() {
 	}