diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 7289d28..b0f34e8 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -1,8 +1,13 @@
 name: CI
 on:
   push:
+    branches:
+      - main
   pull_request:
-  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   lint:
@@ -22,6 +27,23 @@ jobs:
           source .venv/bin/activate
           ruff format --check
 
+      - name: Lint
+        run: |
+          source .venv/bin/activate
+          ruff check
+
+      - name: Checkout pyright diff plugin
+        uses: https://github.com/actions/checkout@v5
+        with:
+          repository: mx/diff_quality_basedpyright
+          path: diff_quality_basedpyright
+
+      - name: Typecheck Diff
+        run: |
+          source .venv/bin/activate
+          uv pip install -e diff_quality_basedpyright
+          diff-quality --violations=basedpyright --fail-under=100
+
   test:
     runs-on: ubuntu-latest
     needs: "lint"