You drag the components with the LMB and draw the wires using RMB.
Spelling errors might be there as I am not a native English speaker and this game was made in a week for a game jam.If you could point out where the grammatical errors are, I can go and fix them accordingly.
ignore the spelling errors note, as it's absolutely unimportant to the fact that the interface is absolutely unintuitive if not unusable, period.
i'm sure someone will say "oh you do this", but "You drag the components with the LMB and draw the wires using RMB" -- no, no you don't. The tutorial level doesn't even come close to that being useful. It doesn't work.