Yeah, also missed the deadline. No clue how to upload something to itch. I can create a new game, but I have no idea how to set it to public (which I guess you need to submit it to a Jam) or how to see your uploaded games :(
Anyway, here's my project. It needs to be started from the terminal. Informations to controls & co. can be found in the readme. Source code is included but not really nice to look at^^. https://lakorta.itch.io/ncurse-and-run
It is typically possible to add a late submission -- you might be able to get directly in contact with the organiser (https://itch.io/profile/xondak) some other way as well. It probably wouldn't be much trouble, and the more entries, the more fun the jam is!