So, we’ve moved from the breadboard to a working prototype PCB. I soldered on the parts and it works well. There’s not much more to say. There’s a good chance that this is what a “product” would look like. Do you want to buy one? Faselei cart not included.
I’m not sure exactly how, but could you possibly use an Arduino to clone the specific code needed for the flash cart?
I’m not exactly sure what you’re getting at, but the Linker that I’ve been producing is (in some ways) somewhat like an Arduino.