mleku on Nostr: yeah, this is something that tapsigners do except only with multiple individual keys ...

yeah, this is something that tapsigners do except only with multiple individual keys using protocol musig... musig2 support with schnorr would work too but that's a whole protocol change, shamir's secret shares would be fine for the interface side of it

it's a hard problem, i can see a lot of people falling back to methods that have wide open physical vulnerability, but this is more of an issue for travelers than people working in an office or at their home where there is physical security