I am currently building a suite of software that'll allow users to easily design and run Monte Carlo simulations to solve problems in statistical physics. I am in no rush, mostly because there are probably only a few thousand people who will ever need such capabilities and it's fair to say that most of them will have enough knowledge to build their own Monte Carlo simulations from scratch.

Honestly, I'm only doing it because it's a nice way of wasting time whilst convincing myself that I'm not wasting time!