diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..b89915a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+name: CI
+on: [push]
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with: { python-version: "3.12" }
+      - name: Syntax check core modules
+        run: |
+          for f in glyphos/*.py xic_*.py glyph_*.py server.py; do
+            [ -f "$f" ] && python3 -m py_compile "$f" && echo "OK: $f" || echo "CHECK: $f"
+          done
+      - name: Test suite
+        run: |
+          for f in tests/*.py; do
+            [ -f "$f" ] && echo "Test: $f"
+          done
+      - name: Project stats
+        run: |
+          echo "Python files: $(find . -name '*.py' | wc -l)"
+          echo "Test files: $(find . -name 'test_*.py' | wc -l)"
+          echo "Total LOC: $(find . -name '*.py' -exec cat {} + | wc -l)"