diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3c53e34fb..99f468852 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,18 +8,16 @@ on:
 
 jobs:
 
-  build:
+  ubuntu:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - name: Checkout
+      uses: actions/checkout@v2
 
     - name: npm install
       run: cd webapp; npm install
 
-    - name: ESLint
-      run: cd webapp; npm run check
-
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
@@ -31,11 +29,14 @@ jobs:
     - name: Copy server binary for Cypress
       run: cp bin/linux/octoserver bin/
 
-    - uses: actions/upload-artifact@v1
+    - name: Upload server package
+      uses: actions/upload-artifact@v1
       with:
         name: octo-linux-amd64.tar.gz
         path: ${{ github.workspace }}/dist/octo-linux-amd64.tar.gz
-      name: Upload server package
+
+    - name: ESLint
+      run: cd webapp; npm run check
 
     - name: "Test webapp: Jest"
       run: cd webapp; npm run test
@@ -45,3 +46,34 @@ jobs:
 
     - name: Test server
       run: make server-test
+
+  macos:
+    runs-on: macos-10.15
+
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: npm install
+      run: cd webapp; npm install
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.15
+
+    - name: List Xcode versions
+      run: ls -n /Applications/ | grep Xcode*
+
+    - name: Build macOS
+      run: make mac-app
+      env:
+        DEVELOPER_DIR: /Applications/Xcode_12.3.app/Contents/Developer
+
+    - name: Upload macOS package
+      uses: actions/upload-artifact@v1
+      with:
+        name: tasks-mac.zip
+        path: ${{ github.workspace }}/mac/dist/tasks-mac.zip
+