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Updates, announcements, and other news from microcosm

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Atmosphere sync: Tap, Hydrant, roll-your-own?
Apr 2, 2026
A rough framework for deciding how to keep up with atproto data
1
atprotosync
Introducing Hubble: A Public Mirror for the Whole Atmosphere
Mar 20, 2026
New atproto infrastructure for network resilience, supported by a grant from Bluesky
atprotoatmosphere
"statistically reasonable maximum"
Jan 28, 2026
How many entries can a Merkle Search Tree node have? An attempt to answer with half a million atproto repositories & two coin flips.
1
MSTMerkle Search Tree
microcosm 2025
Jan 2, 2026
A quick (and almost complete) retrospective of what happened in microcosm's first year
Adversarial PLC directory migration
Sep 19, 2025
Contingency planning: what's our credible failover for the centralized underpinning of ATProto identities?
1
Weekly 2025-09-05
Sep 9, 2025
A us-east drop-in jetstream replacement, and a working demo for microcosm Pocket: non-public per-user per-app preference data storage!
Weekly 2025-08-29
Sep 3, 2025
relays today relays tomorrow relays forever
Weekly 2025-08-22
Aug 27, 2025
cut fibre optics, incident response, infra resilience was the (unplanned) order of the week
Postmortem: 2025-08-18
Aug 20, 2025
Someone literally cut off my home internet
weekly 2025-08-15
Aug 16, 2025
things that happened in the microcosm this week
Six months of microcosm
Aug 11, 2025
What's happened and what's next
3
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