Why Nostr? What is Njump?
Bitkey includes a mobile app, hardware device, and set of recovery tools in case you lose your phone, or hardware, or both.

https://bitkey.build/
Public Key
npub1tcnvkw8fu29zspw54tuhfrk0tkzn6qdupmc45slt4zmase3dzqask6ctu0
Profile Code
nprofile1qqs9ufkt8r579z3gqh2247t53m84mpfaqx7qau26g0463d7cvck3qwcpzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgclyrh8
Publishing to
Author Public Key
npub1tcnvkw8fu29zspw54tuhfrk0tkzn6qdupmc45slt4zmase3dzqask6ctu0