I can confirm the matrix nand flasher conversion. I did this back 3 years ago with a bit of chipboard and the resistors, zener diode and capacitor. Worked great and is hanging around here somewhere. This was back when the jr programmer was much more expensive and I’d almost recommend to simply...
I feel like school, back when I was actually in school, was more entertaining though, because of how much I get to interact with people, hang out with friends, and other stuff like that. All I get to talk to at work is my boring coworkers lol