diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..8325034
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,11 @@
+name: "CI"
+on:
+  pull_request:
+  push:
+jobs:
+  tests:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2.3.4
+    - uses: cachix/install-nix-action@v15
+    - run: nix check