Create a custom QR code that encodes some text, e.g. a URL and shows some text, e.g.: your name.
You can open this repo in codespaces and it will install the prerequisites and be ready to run at the terminal, with the following command.
python qr_gen.py -e "https://github.com/phoughton" -v "Pete Houghton" -o "myqr.png"Don't forget to change the details to be yours and to put the text in the double quotes.
In Github Codespaces a right mouse click will give you the option to download the image.