Started a bounty for importing nsec as a QR code from a secure hardware device like Passport:
https://github.com/vitorpamplona/amethyst/issues/328
So far we have 750k sats pledged, really look forward to this as it will greatly simplify logins from a secure, air-gapped device! Step by step we'll get better key management with better backup options by leveraging the infrastructure we already use for our Bitcoin keys.