diff --git a/.github/workflows/push.yaml b/.github/workflows/push.yaml
new file mode 100644
index 0000000..998a067
--- /dev/null
+++ b/.github/workflows/push.yaml
@@ -0,0 +1,27 @@
+name: Push
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Lint and test
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Nix
+        uses: nixbuild/nix-quick-install-action@v34
+
+      - run: nix flake check
+      - run: |
+          cd ./test/fixtures/mst-test-suite
+          nix develop --command uv python install 3.15 --default
+          nix develop --command uv sync
+          nix develop --command uv run ./scripts/generate_exhaustive_cars.py
+
+      - run: nix develop --command mix deps.get
+      - run: nix develop --command mix credo --mute-exit-status -a
+      - run: nix develop --command mix test