diff --git a/.github/workflows/workflow b/.github/workflows/workflow
new file mode 100644
index 00000000..4278a0e2
--- /dev/null
+++ b/.github/workflows/workflow
@@ -0,0 +1,90 @@
+name: Main workflow
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+jobs:
+  run:
+    name: Run
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Set Node.js 12.x
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+
+    - name: npm install
+      run: npm install
+
+    - name: Lint
+      run: npm run format-check
+
+    - name: npm test
+      run: npm test
+
+    - name: Run with setup-python 2.7
+      uses: ./
+      with:
+        python-version: 2.7
+    - name: Verify 2.7
+      run: python __tests__/verify-python.py 2.7
+
+    - name: Run with setup-python 3.5
+      uses: ./
+      with:
+        python-version: 3.5
+    - name: Verify 3.5
+      run: python __tests__/verify-python.py 3.5
+
+    - name: Run with setup-python 3.6
+      uses: ./
+      with:
+        python-version: 3.6
+    - name: Verify 3.6
+      run: python __tests__/verify-python.py 3.6
+
+    - name: Run with setup-python 3.7
+      uses: ./
+      with:
+        python-version: 3.7
+    - name: Verify 3.7
+      run: python __tests__/verify-python.py 3.7
+
+    - name: Run with setup-python 3.8
+      uses: ./
+      with:
+        python-version: 3.8
+    - name: Verify 3.8
+      run: python __tests__/verify-python.py 3.8
+    
+    - name: Run with setup-python 3.7.5
+      uses: ./
+      with:
+        python-version: 3.7.5
+    - name: Verify 3.7.5
+      run: python __tests__/verify-python.py 3.7.5
+
+    - name: Run with setup-python 3.6.7
+      uses: ./
+      with:
+        python-version: 3.6.7
+    - name: Verify 3.6.7
+      run: python __tests__/verify-python.py 3.6.7
+
+    - name: Run with setup-python 3.8.1
+      uses: ./
+      with:
+        python-version: 3.8.1
+    - name: Verify 3.8.1
+      run: python __tests__/verify-python.py 3.8.1