i made a way to move a password or key from one device to another by scanning a QR code no account, no server of your own. it travels over public nostr relays, sealed with NIP-44 + NIP-59 so the relays can’t read it. both devices use throwaway keys that are destroyed after one transfer draft spec, not audited yet. please try to break it https://sybenx.github.io/qr-secret-transfer/