diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..c5950f1
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,32 @@
+name: build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v6
+      with:
+        go-version: '1.21'
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v -cover ./...
+
+    - name: Lint
+      run: go vet -composites=false ./...
+
+    - name: Format
+      run: go fmt ./... && git diff --exit-code --color