diff --git a/.github/workflows/checkin.yml b/.github/workflows/checkin.yml
index c065105..a707acb 100644
--- a/.github/workflows/checkin.yml
+++ b/.github/workflows/checkin.yml
@@ -1,26 +1,76 @@
 name: Checkin
 
-on:
-  push:
-    branches:
-      - main
-  pull_request:
+on: push
+
+permissions:
+  contents: write
 
 jobs:
-  lint:
+  build-indico-plugin:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
-      - name: Setup Python
-        uses: actions/setup-python@v4
-      - name: Install dependencies
+        uses: actions/checkout@v4
+        with:
+          path: plugin
+
+      - name: Clone indico
+        run: |
+          git clone https://github.com/indico/indico.git indico-src \
+              --depth 1 --branch master
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: indico-src/package-lock.json
+
+      - name: Setup apt packages
         run: |
-          python -m pip install --upgrade pip
-          python -m pip install tox
+          sudo apt install -y --install-recommends libxslt1-dev libxml2-dev libffi-dev libpcre3-dev \
+          libyaml-dev build-essential libpq-dev libpango1.0-dev
+          sudo apt install -y libjpeg-turbo8-dev zlib1g-dev
+
+      - name: npm ci plugin
+        working-directory: ./plugin
+        run: npm ci
+
+      - name: npm ci indico
+        working-directory: ./indico-src
+        run: npm ci
+
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: pip
+
+      - name: pip plugin
+        working-directory: ./plugin
+        run: pip install -e '.[dev]'
+
       - name: Tox
+        working-directory: ./plugin
         run: python -m tox
 
+      - name: pip indico
+        working-directory: ./indico-src
+        run: pip install -e '.[dev]'
 
+      - name: Build wheel
+        working-directory: ./indico-src
+        run: ./bin/maintenance/build-wheel.py plugin ../plugin
 
+      - name: Upload Wheel
+        uses: actions/upload-artifact@v4
+        with:
+          name: wheel
+          path: indico-src/dist/*.whl
 
+      - name: Release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: softprops/action-gh-release@v2
+        with:
+          fail_on_unmatched_files: true
+          files: indico-src/dist/*.whl
diff --git a/.gitignore b/.gitignore
index d416c1e..d68aa97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ build/
 webpack-build-config.json
 url_map.json
 node_modules/
+.tox
diff --git a/setup.cfg b/setup.cfg
index 257bc9f..646882c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,9 +19,36 @@ python_requires = >=3.9.0, <3.13
 install_requires =
     indico>=3.0
 
+[options.extras_require]
+dev = tox==4.14.2
+
+
 [options.entry_points]
 indico.plugins =
     countdown = indico_countdown_plugin.plugin:CountdownPlugin
 
 [pydocstyle]
 ignore = D100,D101,D102,D103,D104,D105,D107,D203,D213
+
+[flake8]
+ignore = E203, E266, E501, W503
+max-line-length = 88
+max-complexity = 18
+select = B,C,E,F,W,T4
+
+[tox:tox]
+envlist = py3
+
+[isort]
+profile = black
+
+[testenv]
+allowlist_externals = npx
+deps =
+  black
+  isort
+  flake8
+commands =
+  black indico_countdown_plugin
+  isort indico_countdown_plugin
+  flake8 indico_countdown_plugin