To be fair, all the wires he uses are pre-cut / pre-shaped for the video. The videos are meticulously planned and marvelously executed. Normally hobby projects do not have nearly as much thought put into them.
I've been taking the time to perfectly measure out all the wires on my 8-bit because I don't mind the monotony, its kind of peaceful. But holy hell it takes a long time.
Its like 95% measuring and cutting, 5% thinking, testing and debugging.
Its a bit of a welcome relief from software, which is 95% thinking and 5% typing. A bit of monotony might be good for the brain.