Kurt Roeckx on Nostr: to clarify what I mean, based on what I've read it should be easy to automate ...

to clarify what I mean, based on what I've read it should be easy to automate everything for the user. You can write an app that scans the barcode, extracts what it needs from it, and does the dialing for the user. You could also register the mime type so that a upi:// url opens the app.