Run ./start.sh, then go to http://localhost:5000/install/install.php. Choose MySQL
and set the following parameters:
HOST = mysql
USER = pxmboard
PASSWORD = password
DATABASE = pxmboard
When running from somewhere else, make sure to set the DM_UID and DM_GID environment variables
for docker-compose to the host user and group id. This ensures during development both the running
Docker container and the developer can write.