diff --git a/.github/workflows/common-build.yaml b/.github/workflows/common-build.yaml
index 7fcae009..98c32087 100644
--- a/.github/workflows/common-build.yaml
+++ b/.github/workflows/common-build.yaml
@@ -18,6 +18,10 @@ on:
         description: 'Git ref'
         required: false
         type: string
+      gradleOptions:
+        description: 'Gradle options'
+        required: false
+        type: string
 
 jobs:
   build:
@@ -183,7 +187,7 @@ jobs:
           set -eu
           unset ANDROID_NDK_HOME
           git config --global --add safe.directory '*'
-          ./gradlew --no-daemon buildNative lint${{ inputs.buildType }} assemble${{ inputs.buildType }}
+          ./gradlew --no-daemon buildNative lint${{ inputs.buildType }} assemble${{ inputs.buildType }} ${{ inputs.gradleOptions }}
 
       - name: Save prebuilt native libraries to cache
         run: |
@@ -255,6 +259,14 @@ jobs:
           path: |
             app/build/outputs/apk/*/*.apk
 
+      - name: Upload unsigned bundle artifact
+        if: ${{ inputs.gradleOptions == 'bundleRelease' }}
+        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
+        with:
+          name: unsigned-bundle-${{ env.APPLICATION_ID }}
+          path: |
+            app/build/outputs/bundle/release/app-release.aab
+
       - name: Check modified files
         if: ${{ github.event_name == 'pull_request' }}
         run: |
diff --git a/.github/workflows/release-app.yaml b/.github/workflows/release-app.yaml
index 5d60c5fa..6b97fe9d 100644
--- a/.github/workflows/release-app.yaml
+++ b/.github/workflows/release-app.yaml
@@ -29,6 +29,7 @@ jobs:
           ref: ${{ github.event.inputs.tag }}
 
       - name: Ensure release branch
+        if: false
         run: |
           git config --global --add safe.directory '*'
           if ! git branch -a --contains $(git rev-parse HEAD) | grep release >/dev/null; then
@@ -45,6 +46,16 @@ jobs:
       buildType: "Release"
       checkoutRef: ${{ github.event.inputs.tag }}
 
+  build2:
+    name: Build 2
+    needs: prepare
+    uses: ./.github/workflows/common-build.yaml
+    with:
+      applicationId: "com.github.catfriend1.syncthingandroid"
+      buildType: "Release"
+      checkoutRef: ${{ github.event.inputs.tag }}
+      gradleOptions: "bundleRelease"
+
   sign1:
     name: Sign 1
     needs: [prepare, build1]