Did you try testing this with users to see if anyone understand that the “sign in with Schnorr” means? I’d never guess that it meant something related to Nostr.
Good point. We are just protyping with the Solid OS team right now. And they dont know what Nostr is. But they already have Schnorr signatures. So it seemed like a quick win. For end users it will have to say something different, yes. We are also working on a W3C spec: HTTP Schnorr Auth https://nostrcg.github.io/http-schnorr-auth/