diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5f188e66..bb0c693e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -45,7 +45,7 @@ jobs:
       mysql:
         image: mysql:5.7
         env:
-          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_ROOT_PASSWORD: root
           MYSQL_DATABASE: acme
         ports:
           - 3306:3306
@@ -112,6 +112,9 @@ jobs:
       - name: Show Composer dependencies
         run: composer show
 
+      - name: Set up hosts file
+        run: echo '127.0.0.1 mariadb postgres' | sudo tee -a /etc/hosts
+
       - name: Run tests
         # In phpunit.xml.dist, tests annotated with "@group mysql" are excluded, revert this
         # Run tests twice to ensure that tests are idempotent even if database caching is enabled
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..b210a2c5
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,18 @@
+FROM php:8.3-fpm
+WORKDIR "/application"
+
+RUN apt-get update \
+    && apt-get -y --no-install-recommends install \
+    libpq-dev \
+    libsqlite3-dev \
+    unzip \
+    wget \
+    default-mysql-client \
+    && docker-php-ext-install \
+        pdo_mysql \
+        pdo_pgsql \
+        pdo_sqlite \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*
+
+COPY --from=composer:2 /usr/bin/composer /usr/local/bin/composer
diff --git a/README.md b/README.md
index 82bb11fc..a23edc9e 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,4 @@ Documentation
 * [Events](doc/events.md)
 * [Examples](doc/examples.md)
 * [Caveats](doc/caveats.md)
+* [Contributing](doc/contributing.md)
diff --git a/doc/contributing.md b/doc/contributing.md
new file mode 100644
index 00000000..35467ad2
--- /dev/null
+++ b/doc/contributing.md
@@ -0,0 +1,25 @@
+# Contributing
+This is for people who want to contribute to the project.
+
+## How to get started
+
+First of all, you need to fork the repository and clone it locally.
+After that, we've prepared a docker setup to help you get started quickly.
+
+Install docker and docker-compose on your machine, then run the following commands:
+
+```bash
+docker-compose up --detach
+```
+
+Install the dependencies with composer:
+
+```bash
+docker-compose exec php-fpm composer install
+```
+
+Now you can execute the tests with the following command:
+
+```bash
+docker-compose exec php-fpm ./vendor/bin/phpunit --exclude-group ""
+```
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..665919c7
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,31 @@
+version: '3.1'
+services:
+    mariadb:
+        image: 'mariadb:11.0'
+        working_dir: /application
+        volumes:
+            - '.:/application'
+        environment:
+            - MYSQL_ROOT_PASSWORD=root
+            - MYSQL_DATABASE=acme
+        ports:
+            - '11003:3306'
+
+    postgres:
+        image: 'postgres:15-alpine'
+        working_dir: /application
+        volumes:
+            - '.:/application'
+        environment:
+            - POSTGRES_USER=postgres
+            - POSTGRES_PASSWORD=postgres
+            - POSTGRES_DB=postgres
+            - POSTGRES_HOST=postgres
+        ports:
+            - '11004:5432'
+
+    php-fpm:
+        build: .
+        working_dir: /application
+        volumes:
+            - '.:/application'
diff --git a/tests/AppConfigMysql/config.yml b/tests/AppConfigMysql/config.yml
index be87d3a9..21b15610 100644
--- a/tests/AppConfigMysql/config.yml
+++ b/tests/AppConfigMysql/config.yml
@@ -3,8 +3,8 @@
 doctrine:
     dbal:
         driver: pdo_mysql
-        host: 127.0.0.1
-        port: null
+        host: mariadb
+        port: 3306
         dbname: acme
         user: root
-        password: ""
+        password: root
diff --git a/tests/AppConfigMysqlUrl/config.yml b/tests/AppConfigMysqlUrl/config.yml
index 0cf71ad6..2cbdd85f 100644
--- a/tests/AppConfigMysqlUrl/config.yml
+++ b/tests/AppConfigMysqlUrl/config.yml
@@ -2,5 +2,5 @@
 
 doctrine:
     dbal:
-        url: 'mysql://root:@127.0.0.1:3306/foobar'
+        url: 'mysql://root:root@mariadb:3306/foobar'
         driver: pdo_mysql
diff --git a/tests/AppConfigPgsql/config.yml b/tests/AppConfigPgsql/config.yml
index 5ba4103f..21e362dc 100644
--- a/tests/AppConfigPgsql/config.yml
+++ b/tests/AppConfigPgsql/config.yml
@@ -3,7 +3,7 @@
 doctrine:
     dbal:
         driver: pdo_pgsql
-        host: 127.0.0.1
+        host: postgres
         port: 5432
         dbname: postgres
         user: postgres