Ah, yeah. A friend of mine that tested the game also found himself stuck and didn't know how to remove a gear. The tutorial really does a bad job of teaching this since it doesn't explicitly tell how to remove a gear and instead teaches how to open the options of a gear which contain the remove button.
For reference, to remove a gear you currently have to right click it which will open its toolbar which only has the remove button for now.
Anyway, thanks for letting me know!