What about sharing nprofiles instead of npubs?
That way the relay information could be used to check if some relay must be added to follow the user properly.
Discussion
If you look closely at the picture I posted, you can see that I do including the QR code for it (which is quite large).
I did see at the bottom the text "N-Profile", but didn't see any QR, sorry.
Nice to hear you also generate nprofile QR!! 👍
perhaps there should be a timestamp component to the nprofile QR code, in case clients accidentally scan old QR codes with outdated relay info
I like the idea, but a timestamp doesn't really indicate something has expired unless there is a policy to make a new one every N days. And 'nprofile' is defined in a NIP without having a timestamp, so you'd have to debate some people to have that changed. If you wanted the QR to contain things other than nprofile, then other clients wouldn't understand. So I think this isn't going to work.