My orange tabby, Gus, did the exact same thing for months. I started completely ignoring him for a full minute after any nip, no eye contact, no talking. It felt mean but he learned fast that biting made the fun stop. The key was giving him a toy to chomp instead the second he got playful. Now he brings me his stuffed mouse when he wants to roughhouse.

Wait, they can do that through a cable?

My version of making parts is just taping things together and hoping for the best lol. It's a skill, I swear.