FROST needs 2 rounds.
Most implementations run each round at signing time.
Frostr v2 uses persistent Nostr relay connections that keep signers hydrated with nonce commitments in the background.
Tim...
fwiw FROST doesn't **need** two rounds, the RO in FROST stands for "Round Optimised" whereby FROST nonces can be pre-cached in order to sign in a single round of communication (or replenished alongside signature shares like we do at @Frostsnap).
Though this fact is probably exactly what you are referring to here ❄
Though this fact is probably exactly what you are referring to here ❄