A friend told me a while back that you can generate QR codes with an image inside with LaTeX. Found a guide on StackExchange now:

https://tex.stackexchange.com/a/575786

Example in the image linking back to this post itself 😜

#LaTeX #QRcode

CTAN: Package fancyqr

@totientfunction You can use any image editor for that. Just set the correction level of the QR code high enough.