diff --git a/README.md b/README.md
index 399cf2a..7900aab 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ An experimental fork of FluffyChat.
  * Change password
  * End-To-End-Encryption
 
-## How to build
+# How to build
 
 1. [Install flutter](https://flutter.dev)
 
@@ -39,29 +39,47 @@ git clone --recurse-submodules https://gitlab.com/ChristianPauly/fluffychat-flut
 cd fluffychat-flutter
 ```
 
-### Android / iOS
+3. Choose your target platform below and enable support for it.
 
-3. For Android install CMake from the SDK Manager
+4. Debug with: `flutter run`
 
-4. Install ninja:
+### Android
+
+* Install CMake from the SDK Manager
+
+* Install ninja:
 ```
 sudo apt install ninja-build
 ```
 
-5. Outcomment the Google Services plugin at the end of the file `android/app/build.gradle`:
+* Outcomment the Google Services plugin at the end of the file `android/app/build.gradle`:
 ```
 // apply plugin: "com.google.gms.google-services"
 ```
 
-6. `flutter run`
+* Build with: `flutter build apk`
+
+### iOS / iPadOS
+
+* With xcode you can't build a release version without our cert. :-/ Use `flutter run --profile` to have a working version on your iOS device.
 
 ### Web
 
-3. `flutter channel beta && flutter upgrade`
+* Enable web support in Flutter: https://flutter.dev/docs/get-started/web
 
-4. `flutter config --enable-web`
+* Build with: `flutter build web --release`
+
+### Desktop (Linux, Windows, macOS)
+
+* Enable Desktop support in Flutter: https://flutter.dev/desktop
+
+* Build with one of these: 
+```
+flutter build linux --release
+flutter build windows --release
+flutter build macos --release
+```
 
-5. `flutter run`
 
 ### Docker
 
diff --git a/lib/components/theme_switcher.dart b/lib/components/theme_switcher.dart
index 7cb2c49..5fecdde 100644
--- a/lib/components/theme_switcher.dart
+++ b/lib/components/theme_switcher.dart
@@ -175,7 +175,7 @@ class ThemeSwitcherWidgetState extends State<ThemeSwitcherWidget> {
   BuildContext context;
 
   Future loadSelection(MatrixState matrix) async {
-    String item = await matrix.store.getItem('theme') ?? 'light';
+    String item = await matrix.store.getItem('theme') ?? 'system';
     selectedTheme = Themes.values.firstWhere(
         (e) => e.toString() == 'Themes.' + item,
         orElse: () => Themes.system);
diff --git a/lib/l10n/intl_gl.arb b/lib/l10n/intl_gl.arb
index 5cb4196..313197d 100644
--- a/lib/l10n/intl_gl.arb
+++ b/lib/l10n/intl_gl.arb
@@ -1291,7 +1291,7 @@
       "username": {}
     }
   },
-  "sentCallInformations": "{senderName} enviou informacións da chamada",
+  "sentCallInformations": "{senderName} enviou información da chamada",
   "@sentCallInformations": {
     "type": "text",
     "placeholders": {
@@ -1702,5 +1702,25 @@
   "@yourOwnUsername": {
     "type": "text",
     "placeholders": {}
+  },
+  "privacy": "Privacidade",
+  "@privacy": {
+    "type": "text",
+    "placeholders": {}
+  },
+  "enableEmotesGlobally": "Activar paquete emote globalmente",
+  "@enableEmotesGlobally": {
+    "type": "text",
+    "placeholders": {}
+  },
+  "emotePacks": "Paquetes de Emotes para a sala",
+  "@emotePacks": {
+    "type": "text",
+    "placeholders": {}
+  },
+  "changeDeviceName": "Cambiar nome do dispositivo",
+  "@changeDeviceName": {
+    "type": "text",
+    "placeholders": {}
   }
 }
diff --git a/lib/utils/famedlysdk_store.dart b/lib/utils/famedlysdk_store.dart
index d57559e..42aeb84 100644
--- a/lib/utils/famedlysdk_store.dart
+++ b/lib/utils/famedlysdk_store.dart
@@ -199,9 +199,30 @@ Future<void> migrate(String clientName, Database db, Store store) async {
   });
 }
 
+// see https://github.com/mogol/flutter_secure_storage/issues/161#issuecomment-704578453
+class AsyncMutex {
+  Completer<void> _completer;
+
+  Future<void> lock() async {
+    while (_completer != null) {
+      await _completer.future;
+    }
+
+    _completer = Completer<void>();
+  }
+
+  void unlock() {
+    assert(_completer != null);
+    final completer = _completer;
+    _completer = null;
+    completer.complete();
+  }
+}
+
 class Store {
   final LocalStorage storage;
   final FlutterSecureStorage secureStorage;
+  static final _mutex = AsyncMutex();
 
   Store()
       : storage = LocalStorage('LocalStorage'),
@@ -217,9 +238,12 @@ class Store {
       }
     }
     try {
+      await _mutex.lock();
       return await secureStorage.read(key: key);
     } catch (_) {
       return null;
+    } finally {
+      _mutex.unlock();
     }
   }
 
@@ -231,7 +255,12 @@ class Store {
     if (value == null) {
       return await secureStorage.delete(key: key);
     } else {
-      return await secureStorage.write(key: key, value: value);
+      try {
+        await _mutex.lock();
+        return await secureStorage.write(key: key, value: value);
+      } finally {
+        _mutex.unlock();
+      }
     }
   }
 
@@ -245,9 +274,12 @@ class Store {
       }
     }
     try {
+      await _mutex.lock();
       return await secureStorage.readAll();
     } catch (_) {
       return {};
+    } finally {
+      _mutex.unlock();
     }
   }
 }
diff --git a/lib/utils/matrix_locals.dart b/lib/utils/matrix_locals.dart
index fe79cf5..38be8bc 100644
--- a/lib/utils/matrix_locals.dart
+++ b/lib/utils/matrix_locals.dart
@@ -250,7 +250,7 @@ class MatrixLocals extends MatrixLocalizations {
 
   @override
   String userLeftTheChat(String targetName) {
-    return l10n.userLeftTheChat(userLeftTheChat);
+    return l10n.userLeftTheChat(targetName);
   }
 
   @override
diff --git a/pubspec.yaml b/pubspec.yaml
index e278cec..f7f6b5e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -41,7 +41,7 @@ dependencies:
   path_provider: ^1.5.1
   webview_flutter: ^0.3.19+9
   share: ^0.6.3+5
-  flutter_secure_storage: ^3.3.1+1
+  flutter_secure_storage: ^3.3.4
   http: ^0.12.0+4
   universal_html: ^1.1.12
   receive_sharing_intent: ^1.3.3