Wow, really awesome game. This is exactly the kind of puzzle game I enjoy and could spend hours on.
The levels are really well designed and the mechanics are awesome. The tutorial levels did a really good job of explaining how to operate the machines and I never had any issues understanding after that. Even when the game threw in the "can you figure out how this works?", I just played around with the colors and figured it out really quickly. The timeline bar at the bottom along with the ability to change colors on-the-fly was a really nice touch to avoid frustrations, more puzzle games need to learn from this!
The soundtrack and visuals were perfect for this game. So satisfying and pleasant! Absolute gem of a game, amazing work!