I've been developing something very similar myself, with Rails also! I don't have any plans to open source it at the moment, but I might at some point.<p>Yours definitely looks far better than mine, UI-wise! As I'm only one person, and I don't have much time to dedicate to mine, I've just done some basic styling of tables, etc. so that it'll work on mobile with relative ease. However, it's something that I can progressively work on.