diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..a6b2368
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,50 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify:
+    name: Verify (Node ${{ matrix.node }})
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [22, 24]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: npm
+
+      - run: npm ci
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Format check
+        run: npm run format:check
+
+      - name: Test
+        run: npm run test:coverage
+
+      - name: Build
+        run: npm run build
+
+      - name: Upload coverage
+        if: matrix.node == 22
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..49d64b6
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,48 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+permissions:
+  contents: read
+  id-token: write # required for npm provenance
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 24
+          registry-url: https://registry.npmjs.org
+          package-manager-cache: false
+
+      - run: npm ci
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Test
+        run: npm run test:run
+
+      - name: Verify tag matches package.json version
+        run: |
+          TAG_VERSION="${GITHUB_REF_NAME#v}"
+          PKG_VERSION=$(node -p "require('./package.json').version")
+          if [ "$TAG_VERSION" != "$PKG_VERSION" ]; then
+            echo "Tag v$TAG_VERSION does not match package.json version $PKG_VERSION"
+            exit 1
+          fi
+
+      - name: Build
+        run: npm run build
+
+      - name: Publish to npm
+        run: npm publish --access public
diff --git a/src/react-router/__tests__/test-helpers.ts b/src/react-router/__tests__/test-helpers.ts
index 15d26e5..3fdc3d8 100644
--- a/src/react-router/__tests__/test-helpers.ts
+++ b/src/react-router/__tests__/test-helpers.ts
@@ -7,7 +7,7 @@ const mockLocation: Location = {
   hash: "",
   state: null,
   key: "default",
-  unstable_mask: undefined
+  unstable_mask: undefined,
 };
 
 /**