I was just joking kind of. I am a struggling computer engineering student always looking for ways to use my skills to earn a little extra income. What type of system compatibility would you need? Arduino compatible serial? Vintage AT motherboards? Some other thing like maybe a commander x16? If people really would be willing to buy homebrew graphics cards like that maybe I’ll look into it.
I don’t really subscribe to the whole if civilization collaspes there will be no technology in anyone’s lifetime again thing. You aren’t going to go back to ordering shit off amazon from your smartphone or anything. However the knowledge that things like refrigeration, radio transmission, internal combustion engines, water treatment and such are possible is going to drive people to eventually find out how to get it by any means necessary.
How quickly this happens is a question of whether the majority of people adopt a “technology is too dangerous/a sin against God” idealogy or not.