Export Nsec with password (format is called Ncryptsec) and save it to an NFC card as a custom URL "nostr:". Then tap phone, Amethyst opens and prompts for password. Very easy restore to new phone or transient login on untrusted device. nostr:nprofile1qqsd03kszje59q2m52wy3u6yne8squ7lsn626kq2u9e48qzp564mdwqpg3mhxw309aek7anzd96x6vn9deuxvu34da6rvutnvdmhjdt9wfkkgenxvfchxcmexcm8w6tjdd38x6t8we3hx6r4d4uh5cnzw9jzummwd9hkutcpr9mhxue69uhhyetvv9uju7t00fhhycfwwahhymry9uq5gamn8ghj7ap4xa3xcdekxf6hv6mndg6hv6m2xfsngurkws6xscmdvem8wctzdsex7dnwveuxceng0f6xxcnvwphhw6fkd968zepwdahxjmmw9ufht6rl got me onto it.

nostr:nevent1qqstx0jy5jvzgh7wr6entjuw7h58d7mapupfdpt9hkf7s4gze34a0vspz9mhxue69uhkummnw3ezuamfdejj7q3q6lrdq99ng2q4hg5ufre5f8j0qpealp8544vq4ctn2wqyrf4tk6uqxpqqqqqqzaqglch