wow can you explain what you did there. looks cool!
nostr:npub1az9xj85cmxv8e9j9y80lvqp97crsqdu2fpu3srwthd99qfu9qsgstam8y8 What about a "Nostr nsec" option for BIP85 menu? It could also show you which is the corresponding npub to crosscheck it in the client.
Discussion
Having a seed in a Coldcard Q, I derived —using a BIP85 index— a deterministic 32-byte-hex. That's a private key for Nostr.
I asked Q to show it as a QR, and then I scanned it with a Nostr client. Thats it.
If I lose my phone or logout from client, I can always derive it again using the same seed and index with a CC Q 🙂
thank you for explaining 🙏🙏