Genuinely really well done on the level design. I truly enjoyed playing these puzzles! I managed to complete the entire game (the last puzzle was really hard though).
The biggest grip I have with the game is the long downtime between taking actions. In puzzles games you dont want to spend too much time executing an idea or waiting for a conveyer belt. Some easy solutions would be to cut out any unnecessary parts, like the wavy path in the final level.
Overall though, great entry!