Quite easy so long as you are comfortable using the Terminal or know a little about web development. We saw the latter approach in action, creating an Astro app to generate QR codes for us. We used the qrcode package, available on npm. If you know what you are doing, as an alternative, you can set this up to generate the QR code from the command line. There is also an alternative CLI tool called qrencode (available on macOS via Homebrew and also Linux). Search for it on your system package manager.