Had literally come back from self imposed exile to post precisely that vid, and it's already up here, nice.
No idea who the coder is, but the whole setup interests me.
In answer to a post a while back, AGEMAME had to merge, because I lacked the time and resource to maintain it individually, and given that it did the job of convincing the then maintainer of MAME it was worthwhile, mission accomplished.
I do appreciate getting PRs in nowadays is like that gag about Ian Paisley seeing St Peter, but if I can help, give me a nudge - I'm not around here much but John Parker and Shiny (remember him) know how to get my attention over stuff.