diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..f191c62
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,27 @@
+name: build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Select Xcode Version
+      uses: maxim-lobanov/setup-xcode@v1
+      with:
+        xcode-version: latest-stable
+
+    - name: Show eligible build destinations
+      run: xcodebuild -showdestinations -scheme CodeScanner
+    - name: Build ( iOS)
+      run: xcodebuild build -scheme CodeScanner -destination 'platform=iOS Simulator,OS=latest,name=iPhone 13 Pro'
+    - name: Build ( mac Catalyst)
+      run: xcodebuild build -scheme CodeScanner -destination 'platform=macOS,arch=x86_64,variant=Mac Catalyst'