I like to discuss the whole situation with Heroku. At the moment it seems like Heroku is not a future stable solution for hosting anymore, therefore @salzig and me already talked about it and I would like to get us one or two Servers at Hetzner for hosting. It's not expensive so I have no problems with taking the costs for that.

What are your thoughts about that @phoet and @janz93? Do you think that this would be an okay solution?