I wasn't part of the jam but I had to check it out since I had also made a space folding puzzle game and this didn't disappoint.
You move around the boxes and can fold anything between them. This limits the ability in a good way and the puzzles make you see each level in a new way.
The folding has the right amount of screenshake and is very satisfying. The jam was solo AFAIK and it's very impressive what you've managed to do in terms of visuals, audio and game feel. In particular the BGM was very relaxing.
I'd like to see different types of folding(ex: vertical). Also, since you have to move around boxes to make the circuits. I imagine it could be tedious to move stuff to make a long folding line. A way of bypassing that would be to have boxes that can connect regardless of distance(ex: boxes with the following property: if two boxes are in same row or column, they connect regardless of distance).
There have been a few other games utilizing space folding as a mechanic. If you plan on expanding this further you can look at them(or mine lol) for ideas.
Overall , great job!