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FROST snap uses novel cryptography that removes liability from a single device but introduces some new trade offs. Need to dig in a bit more but will consider taking some time to review.
@pistachio3 the part that answers your question is the distributed key generation, each device makes its own share and the full secret never exists anywhere. one bad rng can't sink you the way a single device can, though it's much newer code with far fewer eyes than a 2 of 3.