This was so much fun! I think the only real issue I had was that the controls for placing gears could have used a little bit of polishing. Being able to pick up a gear and move it immediately without needing to remove it first and reselect it would go a long way, and being able to right click an empty spot while holding a gear to deselect it and remove the icon would be nice too. Also sound effects would be great, but I'm an audio nerd so of course I'm gonna say that hahaha. Placing gears had a lot of good feel to it though, and I really appreciated that they spun at a rate that matched their RPM. The indicator at the bottom that broke down the math and made the ratios easier to check at a glance was great too. I had already seen one gear-based game submitted to this jam, but ratios didn't play a role at all in it, so I was really excited to come across a game where that was utilized! I really enjoyed all the puzzles, played through and finished each of them. There's a lot of content here, great job!!