Right but where you’re getting the invoice from can be modified. It’s just an endpoint. The rest of the &Nostr= part remains the same.
Discussion
how can that be modifed? Clients fetch it from the users lnurl over https
It’s just a GET endpoint you get from browser devtools. Maybe I’m missing your point?
I could fetch an invoice from MY Lightning address and attach a zap note for YOUR note to it, no?