Hi @marc,
There still some improvements that we can do, add more environment variables or cli installation, add supervisor to manage apache ( this idea i saw over axfelix image), and some other stuff.
But to make this i think we should first create and oficial github project, maybe you can fork my project into pkp github domain, and then we can manage the improvements over issues. Later we can create and oficial repo over hub.docker.com
What do you think?