diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ec65571
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,29 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Build
+        run: npm run build
diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index 38622cd..bbd60bc 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -1,3 +1,4 @@
+import type {ReactNode} from 'react';
 import clsx from 'clsx';
 import Link from '@docusaurus/Link';
 import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
@@ -65,7 +66,7 @@ function Projects() {
   );
 }
 
-export default function Home(): JSX.Element {
+export default function Home(): ReactNode {
   const {siteConfig} = useDocusaurusContext();
   return (
     <Layout