this was a really great twist on the classic pipe dreams formula. it starts out very challenging though, imo, and could maybe use a few easier, smaller introductory levels.
my other main criticism is that the brightness of the lights when many pieces are connected make it very difficult to see the surrounding wires. it seems like each wire has a light source attached and perhaps there could be a limit based on a radius, where if there is anything over the limit is activated, just the color of the wire changes to the appropriate activated color.
Very fun though and I could see this easily being released as a full game with a bit more time available and polish!