In case anyone is interested, latest demo game for Canned Heat (web-based games with Racket and Urlang) is at https://oofoe.itch.io/c4 (an implementation of the classic checkers in a vertical frame game). I also updated the base game skeleton file (%skel.rkt) with the new, more flexible query idioms. Additionally, I have a new tutorial in progress, but not sure I'm going to get it finished before start of jam.
If you decide to try using any of this crazy stuff, I'll be happy to answer questions in this thread.