diff --git a/.woodpecker/checks.yml b/.woodpecker/checks.yml
new file mode 100644
index 0000000..c5dae30
--- /dev/null
+++ b/.woodpecker/checks.yml
@@ -0,0 +1,15 @@
+steps:
+  check:
+    image: nixos/nix
+    commands:
+      - echo 'experimental-features = flakes nix-command' >> /etc/nix/nix.conf
+      - nix flake check
+  fmt:
+    image: nixos/nix
+    commands:
+      - echo 'experimental-features = flakes nix-command' >> /etc/nix/nix.conf
+      - nix run nixpkgs#alejandra -- -c .
+    when:
+      - path:
+          include: ['*.nix']
+          exclude: ['*.md', 'docs/**', '.woodpecker/*.yaml', '*.js', '*.lua', '*.scss', '*.nu']