It's not running anywhere right now, sorry about that. That is because the app is not really ready for public production use. As mentioned in the README, I've kinda stopped working on it some time ago. I think it could still be interesting/useful to people who want to run in even in this state by themselves. The codebase also hopefully has some interesting bits, so I've at least opened it up for now. Another thing is that the backend talks directly to the Musicbrainz API, which is throttled (their DB is open though, so one could make a web service on top of it).
