@nprofile1q... @nprofile1q... Nothing simple about it, but I bet it is far simpler than the graphic and other s/w you’ve done! But you also have dev environments, and code libraries and other accoutrement. We had some, but primitive in comparison. Maybe simple/difficult balances out. I did that work about 40 years ago. In retrospect , it feels a bit like having built a log cabin out on the prairie with hand tools.