diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..cfec672
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,21 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  php-tests:
+    runs-on: ubuntu-latest
+    container: php:8.3-cli-alpine
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Composer
+        run: curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+
+      - name: Install dependencies
+        run: composer install --no-progress --prefer-dist
+
+      - name: Run tests
+        run: vendor/bin/phpunit