plezy: add opt-in workaround for aarch64-linux 16K page size bug (#519986)

pkgs/by-name/pl/plezy/16k-font-workaround.patch

@@ -0,0 +1,35 @@
+diff --git a/lib/theme/mono_theme.dart b/lib/theme/mono_theme.dart
+index b423b4c6..04834360 100644
+--- a/lib/theme/mono_theme.dart
++++ b/lib/theme/mono_theme.dart
+@@ -42,7 +42,7 @@ ThemeData monoTheme({required bool dark, bool oled = false}) {
+   );
+ 
+   final base = ThemeData(
+-    useMaterial3: true,
++    useMaterial3: true, fontFamily: 'NotoSans',
+     brightness: isDark ? Brightness.dark : Brightness.light,
+     colorScheme: ColorScheme(
+       brightness: isDark ? Brightness.dark : Brightness.light,
+@@ -85,7 +85,7 @@ ThemeData monoTheme({required bool dark, bool oled = false}) {
+       titleTextStyle: TextStyle(color: c.text, fontSize: 18, fontWeight: FontWeight.w700, letterSpacing: -0.2),
+     ),
+     textTheme: Typography.englishLike2021
+-        .apply(bodyColor: c.text, displayColor: c.text)
++        .apply(fontFamily: 'NotoSans', bodyColor: c.text, displayColor: c.text)
+         .copyWith(
+           displayLarge: const TextStyle(fontWeight: FontWeight.w700, letterSpacing: -0.5),
+           titleMedium: const TextStyle(fontWeight: FontWeight.w600),
+diff --git a/pubspec.yaml b/pubspec.yaml
+index 8de9f2e3..5b6f1f14 100644
+--- a/pubspec.yaml
++++ b/pubspec.yaml
+@@ -142,3 +142,8 @@ flutter:
+     - assets/shaders/anime4k/
+     - assets/player_icons/
+     - assets/rating_icons/
++
++  fonts:
++    - family: NotoSans
++      fonts:
++        - asset: assets/fonts/NotoSans.ttc

pkgs/by-name/pl/plezy/package.nix

@@ -21,6 +21,8 @@
   _7zz,
   makeBinaryWrapper,
   runCommand,
+  noto-fonts-cjk-sans ? null,
+  use16kPagesizeWorkaround ? false,
 }:
 
 let
@@ -73,7 +75,12 @@ let
     # Upstream uses a sentry-dart fork that fetches sentry-native as a zip instead of via
     # git clone. The PR was merged and reverted upstream (getsentry/sentry-dart#3630), so
     # we use upstream since theres no actual meaningful difference
-    patches = [ ./replace-sentry-fork.patch ];
+    patches = [
+      ./replace-sentry-fork.patch
+    ]
+    ++ lib.optionals use16kPagesizeWorkaround [
+      ./16k-font-workaround.patch
+    ];
 
     nativeBuildInputs = [
       pkg-config
@@ -102,6 +109,12 @@ let
       substituteInPlace linux/CMakeLists.txt \
         --replace-fail "URL https://github.com/simdutf/simdutf/releases/download/v6.4.2/singleheader.zip" \
                        "URL file://${simdutf}"
+    ''
+    + lib.optionalString use16kPagesizeWorkaround ''
+      # Opt-in workaround for invisible text on aarch64-linux systems with 16K page size kernels
+      # (e.g. Asahi Linux). Text was invisible; bundling the font as a Dart asset fixed it,
+      # likely related to libflutter_linux_gtk.so being compiled with 4K page alignment only.
+      install -Dm644 ${noto-fonts-cjk-sans}/share/fonts/opentype/noto-cjk/NotoSansCJK-VF.otf.ttc assets/fonts/NotoSans.ttc
     '';
 
     desktopItems = [