This is a tough one. Art, music, sfx, and gameplay are all very polished - especially for a game jam. As an absolute Factorio degenerate, this seemed like an easy win to me.
But I didn't have fun playing it. It felt really tedious to move all the belts around and manually change recipes. Having some way to automate away the tedium would have helped a lot and wouldn't have compromised the use of the limitation.
Overall very technically impressive - I just wish I had more fun playing it.