diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0131df7..34354bf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,21 +1,40 @@
-name: Test grammar
+name: CI
 
 on:
   push:
-    branches: ["*"]
+    branches: [master]
     paths:
       - grammar.js
       - src/**
       - bindings/**
       - binding.gyp
   pull_request:
-    branches: ["*"]
     paths:
       - grammar.js
       - src/**
       - bindings/**
       - binding.gyp
 
+concurrency:
+  group: ${{github.workflow}}-${{github.ref}}
+  cancel-in-progress: true
+
 jobs:
   test:
-    uses: tree-sitter-grammars/.github/.github/workflows/ci.yml@main
+    name: Test parser
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-14]
+    steps:
+      - name: Set up repository
+        uses: tree-sitter-grammars/actions/setup@main
+        with:
+          submodules: true
+          node-version: ${{vars.NODE_VERSION}}
+      - name: Run tests
+        uses: tree-sitter-grammars/actions/test@main
+        with:
+          test-library: ${{runner.os == 'Linux'}}
+          examples: examples/NeverSink-Filter/**/*.filter
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6c80c93
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "NeverSink-Filter"]
+  path = examples/NeverSink-Filter
+  url = https://github.com/NeverSinkDev/NeverSink-Filter
+  shallow = true
diff --git a/examples/NeverSink-Filter b/examples/NeverSink-Filter
new file mode 160000
index 0000000..92440cf
--- /dev/null
+++ b/examples/NeverSink-Filter
@@ -0,0 +1 @@
+Subproject commit 92440cf47fe3364375704bcee3a20a1f0fe947fd