Absolutely bonkers. Anyone remember the Technology Connections video from a while back about pinball machines?

He cracked one open to reveal the “computer” like 500 relays connected with spaghetti. Can’t imagine how much of a nightmare it must be to debug those. At this point, so much documentation and tribal knowledge is gone that this dude is basically reverse engineering each machine. Hats off.

Edit: article actually points out that he bought out all existing documents from one of the pinball companies.