diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..936067b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - run: pnpm run check
+
+      - run: pnpm run lint
+
+      - run: pnpm run fmt:check
+
+      - run: pnpm test
+
+      - run: pnpm run build
diff --git a/package.json b/package.json
index f0c3b58..a240e5f 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,8 @@
     "check": "tsgo -p tsconfig.json",
     "dev": "vite build --watch",
     "fmt": "oxfmt",
-    "lint": "oxlint",
+    "fmt:check": "oxfmt --check",
+    "lint": "oxlint --deny-warnings",
     "test": "vitest run",
     "prepublishOnly": "pnpm build"
   },