Hey, I'm the owner of the site.
Thanks, glad you're liking the site or the mods.
I'm planning on open-sourcing the theme and some plugins as I find the time. I'm writing my thesis currently and have no time in cleaning up the code. My thesis will be done by autumn, hopefully.
Right now, most modifications are quickly hacked together, bugs galore, messing up the core and whatnot so it would be rather careless to let others tamper with it.
I think a great contribution would be the q2a Bootstrap theme. This is on my todo list. I actually told this GidGreen a while back (a year or so ago) but my studies and side projects kept me too busy.