ci: linux: build arm64

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
           path: '*.msi'
           if-no-files-found: error
 
-  build-linux:
+  build-linux-amd64:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
@@ -68,3 +68,40 @@ jobs:
           name: ${{ env.TAR_FILE }}
           path: '*.tar*'
           if-no-files-found: error
+
+  build-linux-arm64:
+    runs-on: ubuntu-24.04-arm
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          filter: 'tree:0'
+      - run: |
+          sudo apt-get update -y
+          sudo apt-get install -y curl git unzip xz-utils zip libglu1-mesa clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev libstdc++-12-dev
+          sudo apt-get install -y libsqlite3-dev libsecret-1-0 libsecret-1-dev
+
+      # Until Google provides ready tarred Flutter SDK for ARM64, we need to clone and install Flutter manually
+      # https://github.com/subosito/flutter-action/issues/345#issuecomment-2638225681
+      - name: Workaround - Clone Flutter
+        run: |
+          git clone --depth 1 --branch stable https://github.com/flutter/flutter.git $RUNNER_TEMP/flutter
+          echo "$RUNNER_TEMP/flutter/bin" >> $GITHUB_PATH
+      - name: Workaround - Install Flutter
+        run: flutter doctor
+
+      - run: flutter config --enable-linux-desktop
+      - run: |
+          ./package.sh
+          echo "DEB_FILE=$(ls *.deb)" >> $GITHUB_ENV
+          echo "TAR_FILE=$(ls *.tar.xz)" >> $GITHUB_ENV
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.DEB_FILE }}
+          path: '*.deb'
+          if-no-files-found: error
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.TAR_FILE }}
+          path: '*.tar*'
+          if-no-files-found: error