Atrium
Make room
Make room
for ideas.
A shared studio for conversations and work, built on the Yttrium sync engine. This site holds the notes and discussion. Atrium itself is at atriu.me.
What’s in it
Spaces and channels
Public or private spaces with owner, admin, and member roles. Channels and Markdown documents, each backed by its own sync domain.
A private inbox
New messages send metadata-only activity to each recipient’s home. Delivery is durable, retried, and deduplicated. No message text is copied.
Strict private discovery
Only invited members can see a private channel or document. Its name, ID, and member list never appear in a catalog, snapshot, or suggestion.