the mechanics are very intuitive and there's almost zero friction - I always love to see that
I think the only slight feedback I have is that difficulty is perhaps not very challenging. I'm not sure how bad this is in the context of a jam, but I would have liked some puzzles where difficulty scaled up a bit. But I may be nit picking here. Perhaps some other types of scalable objects or interactions could push the last bit of potential you have
simple, readable, intuitive, fun - good stuff!