brother what 💀💀💀 hate to break it to you but i documented the entire process of making this engine on the gandi discord
I also have participated in these jams more than 5 times, and got second place in one of them, AND hosted one of them 😭😭😭😭 safe to say i do not need anyone else's engine.
https://scratch.mit.edu/projects/1094998324/ engine is right here for you buddy bear