diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 55c089b45..d6c18d016 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,7 @@ on:
     branches:
       - dev
       - master
+      - extended
     paths-ignore:
       - 'README.md'
       - 'doc/**'
@@ -49,6 +50,11 @@ jobs:
       - name: Build debug APK and run jvm tests
         run: ./gradlew assembleDebug lintDebug testDebugUnitTest --stacktrace -DskipFormatKtlint
 
+      - name: Generate checksum
+        run: |
+          sha256sum app/build/outputs/apk/debug/*.apk > app/build/outputs/apk/debug/checksums.txt
+          echo "::notice::$(cat app/build/outputs/apk/debug/checksums.txt)"
+
       - name: Upload APK
         uses: actions/upload-artifact@v4
         with:
diff --git a/README.md b/README.md
index 11baa3d30..44e599a7d 100644
--- a/README.md
+++ b/README.md
@@ -47,8 +47,8 @@ graph TD
     D --> | Test & Mini Changes | E[master]
     D --> X[A-feature]
     D --> Y[B-feature]
-    X --> F[extended]
-    Y --> F
+    X --> | REVIEW | F[extended]
+    Y --> | REVIEW | F
 
     F --> | Pre-Release | G(v0.xx.x-extended)