On every join, I take the latest map data, re-encrypt it for the new MLS group state, and sends it as a signed checkpoint. This gives new members the current map without exposing earlier private history. Not sure how this scales but I think private groups don't need to talk about big datasets.
https://github.com/zeSchlausKwab/earthly/blob/master/src/lib/private-workspace/checkpoint.ts
https://github.com/zeSchlausKwab/earthly/blob/8e65fa790711f91abd5ebd2b77a8d1c0a765b64c/src/lib/private-workspace/service.ts#L934
Schlaus Kwab
npub182…jm4rf
2026-07-26 14:17:42 UTC
in reply to nevent1q…829j
Author Public Key
npub182jczunncwe0jn6frpqwq3e0qjws7yqqnc3auccqv9nte2dnd63scjm4rfPublished at
2026-07-26 14:17:42 UTCEvent JSON
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