rewrote the build to check the build for both versions

Author: Your Name

.github/actions/android/action.yml

@@ -37,7 +37,7 @@ runs:
       with:
         cache: true
 
-    - name: Build Android APK/AAB
+    - name: Build preApi30 APK/AAB
       shell: bash
       env:
         STORE_PASS: ${{ inputs.STORE_PASS }}
@@ -46,13 +46,29 @@ runs:
         VERSION_NAME: ${{inputs.VERSION_NAME}}
         VERSION_CODE: ${{inputs.VERSION_CODE}}
       run: |
-        flutter build apk --debug --build-name $VERSION_NAME --build-number $VERSION_CODE
-        flutter build apk --build-name $VERSION_NAME --build-number $VERSION_CODE
-        flutter build appbundle --build-name $VERSION_NAME --build-number $VERSION_CODE
+        flutter build apk --flavor preApi30 --debug --build-name $VERSION_NAME --build-number $VERSION_CODE
+        flutter build apk --flavor preApi30 --build-name $VERSION_NAME --build-number $VERSION_CODE
+        flutter build appbundle --flavor preApi30 --build-name $VERSION_NAME --build-number $VERSION_CODE
 
-    - name: Store APK file
+    - name: Build postApi30 APK/AAB
+      shell: bash
+      env:
+        STORE_PASS: ${{ inputs.STORE_PASS }}
+        ALIAS: ${{ inputs.ALIAS }}
+        KEY_PASS: ${{ inputs.KEY_PASS }}
+        VERSION_NAME: ${{inputs.VERSION_NAME}}
+        VERSION_CODE: ${{inputs.VERSION_CODE}}
+      run: |
+        flutter build apk --flavor postApi30 --debug --build-name $VERSION_NAME --build-number $VERSION_CODE
+        flutter build apk --flavor postApi30 --build-name $VERSION_NAME --build-number $VERSION_CODE
+        flutter build appbundle --flavor postApi30 --build-name $VERSION_NAME --build-number $VERSION_CODE
+
+    - name: Store APK files
       uses: actions/upload-artifact@v4
       with:
         name: apk-files
         path: |
-          build/app/outputs/flutter-apk/app-debug.apk
+          build/app/outputs/flutter-apk/app-preapi30-debug.apk
+          build/app/outputs/flutter-apk/app-preapi30-release.apk
+          build/app/outputs/flutter-apk/app-postapi30-debug.apk
+          build/app/outputs/flutter-apk/app-postapi30-release.apk

.github/actions/screenshot-android/action.yml

@@ -54,11 +54,19 @@ runs:
       with:
         cache: true
 
-    - name: Create Android Screenshots
+    - name: Create Android Screenshots (preApi30)
       uses: reactivecircus/android-emulator-runner@v2
       with:
         api-level: ${{ inputs.ANDROID_EMULATOR_API }}
         arch: ${{ inputs.ANDROID_EMULATOR_ARCH }}
+        script: flutter drive --flavor preApi30 --driver=test_integration/test_driver.dart --target=test_integration/screenshots.dart -d emulator
+
+    - name: Create Android Screenshots (postApi30)
+      uses: reactivecircus/android-emulator-runner@v2
+      with:
+        api-level: ${{ inputs.ANDROID_EMULATOR_API }}
+        arch: ${{ inputs.ANDROID_EMULATOR_ARCH }}
+        script: flutter drive --flavor postApi30 --driver=test_integration/test_driver.dart --target=test_integration/screenshots.dart -d emulator
         profile: pixel_6
         avd-name: pixel_6
         force-avd-creation: false

.github/workflows/push.yml

@@ -24,6 +24,24 @@ jobs:
       - name: Common Workflow
         uses: ./.github/actions/common
 
+      - name: Build preApi30 APK
+        run: flutter build apk --flavor preApi30 -t lib/main.dart
+
+      - name: Build postApi30 APK
+        run: flutter build apk --flavor postApi30 -t lib/main.dart
+
+      - name: Upload preApi30 APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-preapi30-release.apk
+          path: build/app/outputs/flutter-apk/app-preapi30-release.apk
+
+      - name: Upload postApi30 APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-postapi30-release.apk
+          path: build/app/outputs/flutter-apk/app-postapi30-release.apk
+
       - name: Hydrate and Update Version
         id: flutter-version
         run: |

README.md

@@ -131,6 +131,31 @@ For this mode it is required that both the workstation and the device are on the
 
 Enable Wireless debugging as per the [documentation](https://developer.android.com/tools/adb#wireless-android11-command-line), then **pair** `adb pair <IP>:<PORT>` and **connect** `adb connect <IP>:<PORT>` and you should be able to find your device via `adb devices`.
 
+## Building for Android (API Flavors)
+
+This project uses product flavors to support both pre-Android 11 and Android 11+ devices. **You must specify a flavor when building or running for Android!**
+
+- **For Android 10 and below:**
+  ```sh
+  flutter build apk --flavor preApi30 -t lib/main.dart
+  flutter run --flavor preApi30 -t lib/main.dart
+  ```
+  Output: `build/app/outputs/flutter-apk/app-preapi30-release.apk`
+
+- **For Android 11 and above:**
+  ```sh
+  flutter build apk --flavor postApi30 -t lib/main.dart
+  flutter run --flavor postApi30 -t lib/main.dart
+  ```
+  Output: `build/app/outputs/flutter-apk/app-postapi30-release.apk`
+
+If you do not specify a flavor, the build will fail due to missing `minSdkVersion` and `targetSdkVersion` in the default configuration.
+
+**Developer Note:**
+- This is a standard practice for multi-target Android projects (such as those distributed on F-Droid).
+- It ensures clarity and prevents accidental builds for the wrong Android version.
+- If you want extra convenience, you can create local shell scripts or aliases, e.g., `run-pre.sh` with `flutter run --flavor preApi30 -t lib/main.dart` for faster development.
+- Always check the README for up-to-date build instructions.
 
 ## LICENSE