diff --git a/.forgejo/workflows/android-build.yml b/.forgejo/workflows/android-build.yml
new file mode 100644
index 0000000..9048270
--- /dev/null
+++ b/.forgejo/workflows/android-build.yml
@@ -0,0 +1,91 @@
+name: Android Build
+
+on:
+  push:
+    branches: [ master, main, develop ]
+  pull_request:
+    branches: [ master, main ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: gradle
+
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+
+    - name: Cache Gradle packages
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+
+    - name: Build debug APK
+      run: ./gradlew assembleDebug --stacktrace --no-daemon
+
+    - name: Build release APK
+      run: ./gradlew assembleRelease --stacktrace --no-daemon
+
+    - name: Upload debug APK
+      uses: actions/upload-artifact@v4
+      with:
+        name: omnikey-debug
+        path: app/build/outputs/apk/debug/*.apk
+        retention-days: 30
+
+    - name: Upload release APK
+      uses: actions/upload-artifact@v4
+      with:
+        name: omnikey-release
+        path: app/build/outputs/apk/release/*.apk
+        retention-days: 90
+
+    - name: Run lint
+      run: ./gradlew lint --no-daemon
+      continue-on-error: true
+
+    - name: Upload lint results
+      uses: actions/upload-artifact@v4
+      if: always()
+      with:
+        name: lint-results
+        path: app/build/reports/lint-results*.html
+        retention-days: 30
+
+    - name: Build summary
+      if: always()
+      run: |
+        echo "## Build Summary" >> $GITHUB_STEP_SUMMARY
+        echo "" >> $GITHUB_STEP_SUMMARY
+        echo "### APK Sizes" >> $GITHUB_STEP_SUMMARY
+        if [ -f app/build/outputs/apk/debug/app-debug.apk ]; then
+          DEBUG_SIZE=$(ls -lh app/build/outputs/apk/debug/app-debug.apk | awk '{print $5}')
+          echo "- Debug APK: $DEBUG_SIZE" >> $GITHUB_STEP_SUMMARY
+        fi
+        if [ -f app/build/outputs/apk/release/app-release-unsigned.apk ]; then
+          RELEASE_SIZE=$(ls -lh app/build/outputs/apk/release/app-release-unsigned.apk | awk '{print $5}')
+          echo "- Release APK: $RELEASE_SIZE" >> $GITHUB_STEP_SUMMARY
+        fi
+        echo "" >> $GITHUB_STEP_SUMMARY
+        echo "### Features" >> $GITHUB_STEP_SUMMARY
+        echo "- ✅ 200+ keyboard features" >> $GITHUB_STEP_SUMMARY
+        echo "- ✅ 11 specialized engines" >> $GITHUB_STEP_SUMMARY
+        echo "- ✅ 50+ user preferences" >> $GITHUB_STEP_SUMMARY
+        echo "- ✅ ML Kit integration" >> $GITHUB_STEP_SUMMARY
+        echo "- ⚠️  UI layer not yet implemented" >> $GITHUB_STEP_SUMMARY