[Choc13]

We do have some upcoming changes that will make the status clearer on the website and will be removing some constant time overhead that we're paying on each playground run. I agree that the playground is on the slow side at the moment whilst we're still in the early stages of developing this product.

On the Lisp point, it's not really been developed for commercial reasons, as like you say it's not got the largest market share, but we wanted to see if we could get it to work with languages other than C and Lisp seemed like a nice one to try.

[Choc13]

I should add that we believe it’s possible to support other langs too, especially if they compile down to LLVM IR, or have an interpreter/runtime that does. So we plan to eventually work on support for others too like C++, .NET, Java, JavaScript and Rust.