diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..c9b8fc8
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  lint-and-smoke:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install package
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install ruff
+
+      - name: Lint (ruff)
+        run: ruff check .
+
+      - name: Smoke import
+        run: python -c "import skyforge; print(skyforge.__name__)"
+
+      - name: CLI help
+        run: skyforge --help