I've been amazed by this jam. It's like bigger and better every year (in terms of jams going deeper and deeper).
I imagine we're 5 years away of "Make your own OS, language, compiler, VM and game in 12 minutes, 36 seconds. Extra points if you gave yourself a stroke."
previous discussion of the jam https://news.ycombinator.com/item?id=46097671
A decade ago I ran several “seven hour roguelikes”, https://web.archive.org/web/20160321153532/http://people.cla... is the documentation from the first one.
The first year I spent six hours writing one of the first ecs crates in Rust and then an hour turning it into a game. lots of fun! you can search “7HRL” on github to find the historical participants not too ashamed to publicize their code at the end. A few dozen people enjoyed this.