This sounds like an interesting idea. I've been looking to get involved in some kind of worthwhile project on Github, as although I've been developing for years, I haven't really used it all that much. This kind of thing wouldn't want to be using something like react would it? I don't know react (yet), but from what I see, although it looks great, it seems like quite a steep learning curve for beginners. Do you mean perhaps extending Bootstrap with some Steem API calls for example, or something else?