I have recently written a general literate programming environment that one can use to write just about anything: https://github.com/jostylr/literate-programmin

I have recently written a general literate programming environment that one can use to write just about anything: https://github.com/jostylr/literate-programming https://github.com/jostylr/literate-programming It also uses markdown and its code conventions. It is still early stages, but it seems to be working fine. It compiles itself, of course. It has the ability to compile snippets mid-compiling. So one probably could, for instance, write small self-contaied snippets of coffeescript and potentially merge the compiled version into a normal javascript script, all of which is being compiled from a single (or multiple if you like) markdown documents.