Marmot got a little play here earlier this month (#1245772) and in @tuma's excellent weekly recap (#1256081), but it looks interesting.
Encrypted group messaging on nostr made some tracks earlier when White Noise came out (#1031219), but Marmot seems to be another option here.
Marmot maintains strong security guarantees through MLS:
- Forward Secrecy: Past messages remain secure even if current keys are compromised
- Post-Compromise Security: Key rotation limits impact of future compromises
- Identity Separation: MLS signing keys are distinct from Nostr identity keys
- Regular Key Rotation: Automatic key updates enhance security over time