diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index 4459564..a3428ef 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -22,7 +22,17 @@ jobs:
           extra_nix_config: experimental-features = nix-command flakes flake-self-attrs
 
       - name: Build app
-        run: nix develop --command bash -c "flutter pub get && dart scripts/generate.dart && flutter pub run build_runner build && flutter build ios --release --no-codesign"
+        run: |
+          nix develop --command bash -c '
+            set -e
+            flutter pub get
+            dart scripts/generate.dart
+            flutter pub run build_runner build
+            # Nix-provided Flutter'"'"'s bundled frameworks are read-only, which
+            # breaks lipo when Flutter thins them into build/ (NixOS/nixpkgs#405066).
+            find "$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>/dev/null || true
+            flutter build ios --release --no-codesign
+          '
 
       # Unsigned IPA: SideStore/AltStore re-sign this on-device with the
       # user's own Apple ID at install time, so no certificate is needed here.
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index e7040fa..65e2060 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -22,7 +22,17 @@ jobs:
           extra_nix_config: experimental-features = nix-command flakes flake-self-attrs
 
       - name: Build app
-        run: nix develop --command bash -c "flutter pub get && dart scripts/generate.dart && flutter pub run build_runner build && flutter build macos --release"
+        run: |
+          nix develop --command bash -c '
+            set -e
+            flutter pub get
+            dart scripts/generate.dart
+            flutter pub run build_runner build
+            # Nix-provided Flutter'"'"'s bundled frameworks are read-only, which
+            # breaks lipo when Flutter thins them into build/ (NixOS/nixpkgs#405066).
+            find "$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>/dev/null || true
+            flutter build macos --release
+          '
 
       - name: Upload installer artifact
         uses: actions/upload-artifact@v6
diff --git a/.gitignore b/.gitignore
index 2bec583..935a117 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,4 +41,7 @@ key.properties
 password.txt
 
 # Nix
-/result
\ No newline at end of file
+/result
+
+# Local IPA builds
+*.ipa
\ No newline at end of file
diff --git a/lib/widgets/composer/composer.dart b/lib/widgets/composer/composer.dart
index ca3de8a..5eb7db3 100644
--- a/lib/widgets/composer/composer.dart
+++ b/lib/widgets/composer/composer.dart
@@ -234,7 +234,10 @@ class Composer extends HookConsumerWidget {
                                   child: TextField(
                                     maxLines: 12,
                                     minLines: 1,
-                                    autofocus: true,
+                                    autofocus:
+                                        Platform.isLinux ||
+                                        Platform.isMacOS ||
+                                        Platform.isWindows,
                                     decoration: .new(
                                       hintText: "Your message here...",
                                       border: .none,
diff --git a/lib/widgets/room_chat.dart b/lib/widgets/room_chat.dart
index cb1e695..e867008 100644
--- a/lib/widgets/room_chat.dart
+++ b/lib/widgets/room_chat.dart
@@ -467,6 +467,8 @@ class RoomChat extends HookConsumerWidget {
                           AsyncData(:final value?) ||
                           AsyncLoading(:final value?) => CustomScrollView(
                             controller: scrollController,
+                            keyboardDismissBehavior:
+                                ScrollViewKeyboardDismissBehavior.onDrag,
                             slivers: [
                               SliverToBoxAdapter(
                                 child: Padding(