Really clever puzzle game! I like how the simple idea of connecting gears gradually becomes more complex through different gear sizes, obstacles, rotation, and torque.
The presentation is clean, and the visual feedback makes it easy to understand how the signal changes while experimenting with different solutions. I also really like that you included a level editor. That adds a lot of replay value.
I did have trouble launching the game in Chrome because I got this JavaScript error:
Uncaught NotFoundError: Failed to execute 'transaction' on 'IDBDatabase': One of the specified object stores was not found.
However, when I tried the game in Edge, it worked without any issues.
Great job overall! The concept fits the jam theme very well and has a lot of potential for even more levels and mechanics.