diff --git a/.github/workflows/build-debug-apk.yml b/.github/workflows/build-debug-apk.yml
new file mode 100644
index 0000000..49688b5
--- /dev/null
+++ b/.github/workflows/build-debug-apk.yml
@@ -0,0 +1,43 @@
+name: default
+
+on:
+  push:
+    paths:
+    - 'app/src/**'
+  pull_request:
+    paths: 
+    - 'app/src/**'
+permissions:
+  pull-requests: write
+
+jobs:
+  build-debug-apk:
+    needs: [lint]
+    if: github.event_name == 'pull_request'
+    uses: ./.github/workflows/build-apk.yml
+    with:
+      build-type: debug
+    secrets:
+      key-alias: ${{ secrets.DEBUG_KEY_ALIAS }}
+      keystore: ${{ secrets.DEBUG_KEYSTORE_B64 }}
+      key-password: ${{ secrets.DEBUG_KEY_PASSWORD }}
+  post-apk-link:
+    needs: [build-debug-apk]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Post link to action run detail page
+        uses: actions/github-script@v6
+        with:
+          script: |
+            try {
+              const commentResult = await github.rest.issues.createComment({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                body: `APK build completed! Visit [action run detail page](https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}) to download the APK to test this pull request.`
+              })
+              console.log(commentResult)
+            } catch (e) {
+              console.log("Comment not posted:")
+              console.log(e)
+            }
diff --git a/.github/workflows/default.yml b/.github/workflows/default.yml
index c24f4ab..412c4d0 100644
--- a/.github/workflows/default.yml
+++ b/.github/workflows/default.yml
@@ -22,36 +22,6 @@ jobs:
         with:
           report-path: build/*.xml # Support glob patterns by https://www.npmjs.com/package/@actions/glob
         continue-on-error: false # If annotations contain error of severity, action-ktlint exit 1.
-  build-debug-apk:
-    needs: [lint]
-    if: github.event_name == 'pull_request'
-    uses: ./.github/workflows/build-apk.yml
-    with:
-      build-type: debug
-    secrets:
-      key-alias: ${{ secrets.DEBUG_KEY_ALIAS }}
-      keystore: ${{ secrets.DEBUG_KEYSTORE_B64 }}
-      key-password: ${{ secrets.DEBUG_KEY_PASSWORD }}
-  post-apk-link:
-    needs: [build-debug-apk]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Post link to action run detail page
-        uses: actions/github-script@v6
-        with:
-          script: |
-            try {
-              const commentResult = await github.rest.issues.createComment({
-                issue_number: context.issue.number,
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                body: `APK build completed! Visit [action run detail page](https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}) to download the APK to test this pull request.`
-              })
-              console.log(commentResult)
-            } catch (e) {
-              console.log("Comment not posted:")
-              console.log(e)
-            }
   build-release-apk:
     needs: [lint]
     if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')