I don't have mini-ITX yet in the database, but I plan to add them later, when having sorted out the API intergration. microATX is there, I'll add a filter for the size.
To comment on the use case of faster than T+3 settlements using the block chain. You have to keep in mind many of these instruments trade monthly at best.
Same story with me as well, Python has made me so much more productive, I can build websites and do monte carlo simulations with ease all from the same language.