Quote from: Cricktor on December 23, 2024, 11:06:22 PM

none of those shards reveal any information about what they encode.

Each shard contains information about share groups and the group threshold.
https://bitcointalk.org/index.php?topic=5515901.msg64685551#msg64685551

Quote from: Cricktor on December 23, 2024, 11:06:22 PM

There are reasons to evolve BIP39 recovery words and somebody has to make the first steps. My only problem with Trezor's new approach is that they are at present likely the only ones who support it. I don't know if other wallets will follow up and thus interoperability is hampered or rather cut off.

Keystone also supports Shamir backup.
https://guide.keyst.one/docs/shamir-backup