I heard about the jam late and started late. I was following the heartbeast tutorial before but for my actual game I started on the last day of the Pirate software game jam, and saw that the GMTK game jam started and the theme lined up with the game I was already gonna make so I was like ok, why not. I'll make the game for this jam, then modify it and submit a more complete version for GMTK, but on the night before the GMTK jam I was tired, and things weren't significantly different so I decided to just submit the thing I already uploaded cause why not and if I woke up before 1 PM I'd work on stuff more.
I have git commits as receipts. And if I knew it was a rule I would have acted differently, but idk, just seems unfair to me.