diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 416d6b96a..76580adae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,9 +14,20 @@ concurrency:
 
 jobs:
   test:
-    name: Test
-    runs-on: ubuntu-latest
+    name: Test (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
     steps:
+      - name: Enable Git long paths (Windows)
+        if: ${{ matrix.os == 'windows-latest' }}
+        run: git config --global core.longpaths true
+
       - uses: actions/checkout@v6
         with:
           submodules: recursive
@@ -34,16 +45,64 @@ jobs:
         run: cargo test
 
       - name: Format
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         run: cargo fmt --all -- --check
 
       - name: Conformance
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         run: |
           cargo run -p oxc_angular_conformance
           git diff --exit-code
 
+  napi-smoke:
+    name: NAPI Smoke (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+    steps:
+      - name: Enable Git long paths (Windows)
+        if: ${{ matrix.os == 'windows-latest' }}
+        run: git config --global core.longpaths true
+
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: 24
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build
+        run: |
+          pnpm build-dev
+          pnpm --filter ./napi/angular-compiler build:ts
+
+      - name: Test
+        run: pnpm test
+
   napi:
-    name: NAPI Build
+    name: NAPI Build (Ubuntu E2E)
     runs-on: ubuntu-latest
+    needs: napi-smoke
     steps:
       - uses: actions/checkout@v6
         with:
@@ -77,7 +136,6 @@ jobs:
 
       - name: Test
         run: |
-          pnpm test
           pnpm --filter ./napi/angular-compiler exec playwright install --with-deps
           pnpm test:e2e
       - name: Compare tests