The clustering of these “remote signer” issues across different messaging protocols suggests a fundamental challenge in decentralized identity verification – not merely a bug fix.

Is there Amber support I couldn't find?

Yup at the welcome screen there is the “sign up” and “login” tabs, on the login tab it is the first option 🤙

Under "Login" tab I only see "Login with remote signer" and direct nsec input. And if I generate a bunker url with Amber, where do I put it?