Thank you 🙂
I'm not sure hand-crafted levels would be the same. Restarting a level would rob the player of the initial discovery unless you mean creating a pool of levels which might be hard for a jam game. Either that or stitching it from hand-made chunks/rooms could work.
Sorry the game crashed. Was that maybe after entering a portal? I think I encountered that a few times but didn't have time to fix it unfortunately.