diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca866401d..bbc9c8ccf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,12 +2,62 @@ name: CI
 
 on:
   workflow_dispatch:
+  pull_request:
+    branches:
+      - dev
+      - master
+    paths-ignore:
+      - 'README.md'
+      - 'doc/**'
+      - 'fastlane/**'
+      - 'assets/**'
+      - '.github/**/*.md'
+      - '.github/FUNDING.yml'
+      - '.github/ISSUE_TEMPLATE/**'
+  push:
+    branches:
+      - dev
+      - master
+    paths-ignore:
+      - 'README.md'
+      - 'doc/**'
+      - 'fastlane/**'
+      - 'assets/**'
+      - '.github/**/*.md'
+      - '.github/FUNDING.yml'
+      - '.github/ISSUE_TEMPLATE/**'
 
 jobs:
-  build-and-release:
-
+  build:
     runs-on: ubuntu-latest
 
+    permissions: write-all
+
     steps:
-      - name: Print environment
-        run: env | grep ^GITHUB
+      - name: Checkout branch "${{ github.ref_name }}"
+        run: |
+          git clone --no-checkout https://github.com/polymorphicshade/Tubular.git .
+          git config core.symlinks false
+          git checkout --progress --force ${{ github.ref_name }}
+        
+      - name: Validate Gradle files
+        uses: gradle/wrapper-validation-action@v2
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: 17
+          distribution: "temurin"
+          cache: 'gradle'
+
+      - name: Clean APKs
+        run: rm -rf app/build/outputs/apk/
+
+      - name: Build debug APK and run jvm tests
+        run: ./gradlew assembleDebug lintDebug testDebugUnitTest --stacktrace -DskipFormatKtlint
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app
+          path: app/build/outputs/apk/debug/*.apk