Generating QR Codes

In order to generate our own QR codes natively on the Steckschwein, we drew a lot of inspiration from this article https://8bitworkshop.com/docs/posts/2022/8bit-qr-code.html It even points to an adapted version of the qrtiny library, that has been made to compile with cc65, including a demo for the Apple ][, using cc65’s own Tiny Graphics Interface (TGI). Which is very nice, because all the hard work has already been done. We have not implemented TGI (yet?