diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d1f5c55..fb308bd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -135,21 +135,28 @@ jobs:
         working-directory: example
     strategy:
       fail-fast: false
+      matrix:
+        target: [linux] #, apk]
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: 'recursive'
-    - run: |
+    - uses: actions/setup-java@v4
+      if: ${{ matrix.target == 'apk' }}
+      with:
+        distribution: 'zulu'
+        java-version: '17'
+    - name: Install dependencies
+      run: |
        sudo apt-get update -y
        sudo apt-get install -y cmake clang ninja-build libgtk-3-dev libpulse-dev
        sudo snap install flutter --classic
     - run: flutter doctor --verbose
     - run: flutter pub get
-    - run: flutter build linux --verbose
+    - run: flutter build ${{ matrix.target }} --verbose
 
   Android:
     runs-on: ${{ matrix.host }}-latest
-
     defaults:
       run:
         working-directory: example
diff --git a/README.md b/README.md
index 0ac4000..3f38fc8 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,9 @@ libass is required, and it's added to your app automatically for windows, macOS
 
 If required subtitle font is not found in the system(e.g. android), you can add [assets/subfont.ttf](https://github.com/mpv-android/mpv-android/raw/master/app/src/main/assets/subfont.ttf) in pubspec.yaml as the fallback.
 
+# DO NOT use flutter-snap
+Flutter can be installed by snap, but it will add some [enviroment vars(`CPLUS_INCLUDE_PATH` and `LIBRARY_PATH`) which may break C++ compiler](https://github.com/canonical/flutter-snap/blob/main/env.sh#L15-L18). It's not recommended to use snap, althrough building for linux is [fixed](https://github.com/wang-bin/fvp/commit/567c68270ba16b95b1198ae58850707ae4ad7b22), but it's not possible for android.
+
 # Screenshots
 ![fpv_android](https://user-images.githubusercontent.com/785206/248862591-40f458e5-d7ca-4513-b709-b056deaaf421.jpeg)
 ![fvp_ios](https://user-images.githubusercontent.com/785206/250348936-e5e1fb14-9c81-4652-8f53-37e8d64195a3.jpg)