diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..57af18a
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,43 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+      
+      - name: Run tests
+        run: pytest tests/ -v
+      
+      - name: Run tests with coverage
+        run: pytest tests/ --cov=src/gdiffer --cov-report=term-missing --cov-report=html
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      
+      - name: Install linting tools
+        run: pip install ruff
+      
+      - name: Run linter
+        run: ruff check src/gdiffer/ tests/