Random thought, why not leverage nostr keys in either musig or frost to he a single key within your bitcoin security setup?
This isn’t a single sig holding all your funds on a nostr client, but can make it a way so you have lower friction for a single key, that can then still be co-signed by hardware wallets (or maybe not for lower amounts)!
Can nostr be used as a multi sig signing coordinator?
Absolutely, great product market fit I think, I’ve been posting about this for a year+
Using something like Amber for easy mobile signing would be lit
There are some possible footguns: for example if you replace your single-sig with a 2-of-2, then if you don't have a backup of the hotkey (maybe a compromised nostr client tricked you into backup up the wrong key...), you might get locked out of your funds.
Feels a lot safer in a taproot keypath, if you have recovery paths without the hot key.
If only there was a way to encode contingency paths in case hot keys for lost 😉
