diff --git a/.github/misc/default.conf b/.github/misc/default.conf
new file mode 100644
index 0000000..8aa0b69
--- /dev/null
+++ b/.github/misc/default.conf
@@ -0,0 +1,13 @@
+<VirtualHost *:80>
+  # Variables in this file will be substituted in step "Setup Apache".
+  DocumentRoot _PWD
+
+  <Directory _PWD>
+    AllowOverride All
+    Require all granted
+  </Directory>
+
+  <FilesMatch ".+\.php$">
+    SetHandler "proxy:unix:/run/php/php_PHP_V-fpm.sock|fcgi://localhost"
+  </FilesMatch>
+</VirtualHost>
diff --git a/.github/misc/settings.local.php b/.github/misc/settings.local.php
new file mode 100644
index 0000000..b02216f
--- /dev/null
+++ b/.github/misc/settings.local.php
@@ -0,0 +1,8 @@
+<?php
+/**
+ * @file
+ * Custom settings for test runs.
+ */
+
+// Never send telemetry data.
+$settings['telemetry_enabled'] = FALSE;
diff --git a/.github/workflows/functional-tests.yml b/.github/workflows/functional-tests.yml
new file mode 100644
index 0000000..7534d9b
--- /dev/null
+++ b/.github/workflows/functional-tests.yml
@@ -0,0 +1,84 @@
+name: Functional Tests
+on: [pull_request]
+jobs:
+  simpletest:
+    name: Run Simpletest
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Setup env
+        run: |
+          echo "REPO_NAME=${PWD##*/}" >> $GITHUB_ENV
+          echo 'USE_PHP_V=8.3' >> $GITHUB_ENV
+
+      - name: Install MariaDB
+        uses: shogo82148/actions-setup-mysql@v1
+        with:
+          mysql-version: 'mariadb-10.11'
+          root-password: 'root'
+          auto-start: true
+
+      - name: Verify setup and create database
+        run: |
+          echo -e '[client]\nuser = root\npassword = root\nhost = 127.0.0.1' > ~/.my.cnf
+          mysql -e 'SELECT version()\G'
+          mysql -e 'CREATE DATABASE backdrop;'
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ env.USE_PHP_V }}
+          coverage: none
+          tools: none
+
+      - name: Checkout Backdrop core
+        uses: actions/checkout@v4
+        with:
+          repository: backdrop/backdrop
+
+      - name: Checkout dependency entity_plus
+        uses: actions/checkout@v4
+        with:
+          repository: backdrop-contrib/entity_plus
+          path: modules/entity_plus
+
+      - name: Checkout dependency entity_ui
+        uses: actions/checkout@v4
+        with:
+          repository: backdrop-contrib/entity_ui
+          path: modules/entity_ui
+
+      - name: Checkout dependency entity_token
+        uses: actions/checkout@v4
+        with:
+          repository: backdrop-contrib/entity_token
+          path: modules/entity_token
+
+      - name: Checkout dependency rules
+        uses: actions/checkout@v4
+        with:
+          repository: backdrop-contrib/rules
+          path: modules/rules
+
+      - name: Checkout module
+        uses: actions/checkout@v4
+        with:
+          path: modules/${{ env.REPO_NAME }}
+
+      - name: Setup Apache
+        run: |
+          sudo cp -f modules/${{ env.REPO_NAME }}/.github/misc/default.conf /etc/apache2/sites-available/000-default.conf
+          sudo sed -i -e "s?_PWD?$PWD?g" -e "s/_PHP_V/${{ env.USE_PHP_V }}/g" /etc/apache2/sites-available/000-default.conf
+          sudo apt-get install libapache2-mod-fcgid
+          sudo a2enmod rewrite proxy fcgid proxy_fcgi
+          sudo systemctl start apache2.service
+          sudo sed -i -e 's/user = www-data/user = runner/' /etc/php/${{ env.USE_PHP_V }}/fpm/pool.d/www.conf
+          sudo sed -i -e 's/listen.owner = www-data/listen.owner = runner/' /etc/php/${{ env.USE_PHP_V }}/fpm/pool.d/www.conf
+          sudo systemctl restart php${{ env.USE_PHP_V }}-fpm.service
+
+      - name: Install Backdrop
+        run: |
+          cp modules/${{ env.REPO_NAME }}/.github/misc/settings.local.php .
+          core/scripts/install.sh --db-url=mysql://root:root@127.0.0.1/backdrop
+
+      - name: Run functional tests
+        run: core/scripts/run-tests.sh --force --directory=modules/${{ env.REPO_NAME }} --verbose --color 2>&1