I enjoyed the game, and would definitely check out a fleshed-out version if you decide to make one; I just think I would have enjoyed it a lot more if I could spend more time engaged with the puzzles instead of the controls.
An "undo" function or Ctrl+Z would help a lot. It's very frustrating (& difficult; I have trouble with short-term memory) having to retrace my steps from the beginning just because I hit X instead of C, or needed to double-check what effect something would have.
Also the text scrolls very slowly and the instructions are often unclear. I still don't totally understand what the different colors of wire mean (if anything).