(sending it again as I forgot to "reply-all", sorry for the spam!)

The easiest to do is output these UR QRs from your site, as there are multiple libraries in multiple languages to support them, but I also know that there are some major web-based transaction coordinator services also planning to add Browser scanning of PSBTs on laptops with cameras as well.

That's a really good suggestion, thanks! I think it should be pretty doable, we could also try working on reading a PSBT from a QR code using the webcam.

Alekos