diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..33058ea
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,35 @@
+name: Lint
+
+on:
+  merge_group:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  format-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+
+      - uses: cachix/install-nix-action@v31
+        with:
+          extra_nix_config: |
+            experimental-features = nix-command flakes
+
+      - name: nix flake check (nixfmt, ormolu, cabal-fmt)
+        run: nix flake check --print-build-logs
+
+  hlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+
+      - uses: cachix/install-nix-action@v31
+        with:
+          extra_nix_config: |
+            experimental-features = nix-command flakes
+
+      - name: Run hlint
+        run: nix develop --command hlint .