Hi chaps, just came across this; in a fortnight's time, OnePageRules will be beginning their biannual 'Game Jam', where contestants will have 48 hours to create a one-page wargames ruleset on a theme given by the OPR guys at the beginning of the Jam.
https://itch.io/jam/oprgj2 - The link to the Game Jam.
Anybody interested in this? I'm tempted to give it a go and try and get that Steampunk Platoon-level game out of my head (it was on hiatus as a result of lockdown/moving house/general inertia).