Let's start with the 'easy' solution!
If anyone wants to take a stab at explaining the 'complicated' solution, it would probably be good for the boards.
I'm writing a 'how to' for MaLa (even though I'm not qualified as a user) in plain English, based on the info I find here.
It won't be comprehensive yet, but it will evolve like MaLa and MAME, and hopefully become a bible.