diff --git a/flake.nix b/flake.nix
index 9fe833a..8f2ed25 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,9 +44,10 @@
             pkgs.mkShell {
               packages = with pkgs; [
                 jdk17
-                rustc
+                cargo
                 flutter
                 android.platform-tools
+                (pkgs.writeShellScriptBin "rustup" (builtins.readFile ./nix/fake-rustup.sh))
               ];
               env = rec {
                 LD_LIBRARY_PATH = "${pkgs.lib.makeLibraryPath (with pkgs; [ sqlite ])}:$LD_LIBRARY_PATH";
diff --git a/lib/helpers/extension_helper.dart b/lib/helpers/extension_helper.dart
index 70265a5..970e81f 100644
--- a/lib/helpers/extension_helper.dart
+++ b/lib/helpers/extension_helper.dart
@@ -121,7 +121,10 @@ extension ToMessage on Event {
 }
 
 extension ToTheme on ColorScheme {
-  ThemeData get theme => ThemeData.from(
-    colorScheme: this,
-  ).copyWith(appBarTheme: AppBarTheme(titleSpacing: 0));
+  ThemeData get theme => ThemeData.from(colorScheme: this).copyWith(
+    appBarTheme: AppBarTheme(
+      titleSpacing: 0,
+      backgroundColor: surfaceContainerLow,
+    ),
+  );
 }
diff --git a/lib/widgets/member_list.dart b/lib/widgets/member_list.dart
index 164c312..2de1354 100644
--- a/lib/widgets/member_list.dart
+++ b/lib/widgets/member_list.dart
@@ -20,9 +20,6 @@ class MemberList extends ConsumerWidget {
             children: [
               AppBar(
                 scrolledUnderElevation: 0,
-                backgroundColor: Theme.of(
-                  context,
-                ).colorScheme.surfaceContainerLow,
                 leading: Icon(Icons.people),
                 title: Text("Members"),
                 actionsPadding: EdgeInsets.only(right: 4),
diff --git a/lib/widgets/room_appbar.dart b/lib/widgets/room_appbar.dart
index c000a4a..cfc3bf5 100644
--- a/lib/widgets/room_appbar.dart
+++ b/lib/widgets/room_appbar.dart
@@ -33,7 +33,6 @@ class RoomAppbar extends StatelessWidget implements PreferredSizeWidget {
           )
         : DrawerButton(onPressed: () => onOpenDrawer(context)),
     scrolledUnderElevation: 0,
-    backgroundColor: Theme.of(context).colorScheme.surfaceContainerLow,
     actionsPadding: EdgeInsets.symmetric(horizontal: 8),
     title: Column(
       crossAxisAlignment: CrossAxisAlignment.start,
diff --git a/linux/flutter/generated_plugins.cmake b/linux/flutter/generated_plugins.cmake
index 45f0cc2..3f903b3 100644
--- a/linux/flutter/generated_plugins.cmake
+++ b/linux/flutter/generated_plugins.cmake
@@ -13,6 +13,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  flutter_vodozemac
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)
diff --git a/nix/fake-rustup.sh b/nix/fake-rustup.sh
new file mode 100644
index 0000000..7884c05
--- /dev/null
+++ b/nix/fake-rustup.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Fake rustup for nix-managed Rust toolchains
+
+case "$1" in
+  run)
+    if [[ "$2" == "stable" ]]; then
+      shift 2
+      if [[ $# -eq 0 ]]; then
+        echo "fake rustup: no command given" >&2
+        exit 1
+      fi
+      exec "$@"
+      exit 0
+    fi
+    ;;
+
+  toolchain)
+    if [[ "$2" == "list" ]]; then
+      echo "stable (default)"
+      exit 0
+    fi
+    ;;
+    
+  target)
+    if [[ "$2" == "list" && "$3" == "--toolchain" && "$4" == "stable" && "$5" == "--installed" ]]; then
+      echo "x86_64-unknown-linux-gnu"
+      exit 0
+    fi
+    ;;
+esac
+
+echo "fake rustup: the command:" >&2
+echo "  rustup $*" >&2
+echo "…is not mocked yet" >&2
+exit 1
\ No newline at end of file
diff --git a/pubspec.lock b/pubspec.lock
index 5900f42..33f5d4a 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -577,6 +577,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_vodozemac:
+    dependency: "direct main"
+    description:
+      name: flutter_vodozemac
+      sha256: "16d4b44dd338689441fe42a80d0184e5c864e9563823de9e7e6371620d2c0590"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.1"
   flutter_web_plugins:
     dependency: transitive
     description: flutter
diff --git a/pubspec.yaml b/pubspec.yaml
index 0316d23..005da31 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -54,6 +54,7 @@ dependencies:
   color_hash: ^1.0.1
   scaled_app: ^2.3.0
   html2md: ^1.3.2
+  flutter_vodozemac: ^0.4.1
   
 dev_dependencies:
   build_runner: ^2.4.11