It seems Coldcard can create Nostr keys as well. Maybe ask nostr:nprofile1qqsw3znfr6vdnxrujezjrhlkqqjlvpcqx79ys7gcph9mkjjsy7zsgygpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz8thwden5te0dehhxarj9ekh2arfdeuhwctvd3jhgtnrdakj7qgkwaehxw309ajkgetw9ehx7um5wghxcctwvshspg7dju
Discussion
I haven't check in on this issue in quite a while, but that doesn't sound like a full implementation of what I mean. Creating the key is only one component. It would need to become a standard across the Nostr ecosystem so that events can also be signed using the Coldcard. Meaning I never type my key into anything ever again. I don't even need to see it. I'd just have a seed phrase. Maybe I'm missing something but I haven't seen that functionality yet.
You'd of course sign into apps using a public key, but any actions would require a signing device. I mean to have this as an option, not a requirement. This would be cumbersome for most people, but higher profile and more security conscious people should have the option. Especially if we ever want to have presidents, etc using this stuff. (We should).
Purpose signing apps (like bitwarden) that get child keys and to sign. Different apps then just ask Signing app to sign..
Parent key held offline, or even just another separate app. To kill child key if need he..