Thanks a lot, and congrats for completing the game!
As mentioned in the description and in the credits (level 151) the concept and a lot of levels are inspired by a 2009 ipad game called Geared. It doesn't exist anymore, but a steam reboot by the original author exists here (with a few differences) : https://store.steampowered.com/app/341770/Geared/?l=french&curator_clanid=419725...