from a user pov, one of the biggest features of nostr is account portability. how do they get that if it means giving away their nsec to every app they try? is there even an actual implementation that's in production for big tech logins?

Imagine a “Login with clave” button alongside SWA and login with google -> deep link redirects to app store -> clave opens with the login context -> creates nsec and redirects back to the original app, using another deeplink to transfer context I mean this could work, right? Instead of copy pas...