Thank you. I have uploaded a first version of my game: https://itch.io/jam/4mb-jam-2023/rate/2086461 .
It would be great if someone could just try whether it runs, shows something on the screen, is playable with keyboard and plays music and don't crash. :-)
In order to stay under 32KB, I use no existing game engines or libraries (like SDL or raylib), which means on the other hand the compatibility might not be optimal. Lets pray.