wow, I didn't know this kind of jam is a thing. It looks like a really cool idea, I defenetly will participate, even through there is not much content I would like to add beside bug fixes. Thank you for sharing! Btw, are you planing to participate?
Glad to hear you found the link helpful. And yes, I've continued working on most of the games I've submitted to game jams so I was pretty excited when I saw that Post-Jam was a thing too!