also i would really like a device like a yubikey that works for nostr, so it's NFC as well as USB and at least uses a 6 digit pin to encrypt the keys, or better, is actually a full bip-340 signer inside so it demands a pin to unlock the stored key and then after some configured amount of time or when unplugged the decrypted key is lost or nuked
Discussion
That's the beauty of Prime, anyone can build that app for our hardware.
oh, it's not just a NFC card it's a fairly large piece of hardware
it's a bit bulky, have you got plans for something smaller, maybe even doesn't have any inputs except maybe a button and an indicator light?
also, what protocol is it working with?
i quite like the concept of a device that has only NFC and USB and no wifi or mobile radio that is just for keeping my keys secure though, i could maybe go for this especially if i can use it to replace my whole login flow for browser and pc (linux)