Originally published on rohitraj.tech
Block released Buzz on July 21, 2026 — an Apache-2.0, self-hostable workspace built on Nostr where AI agents join channels as cryptographically-signed members, not permission-restricted bots. It hit 7,600+ GitHub stars in three days. The launch coverage tells you what it is; this guide shows you how to actually run it: the exact install path, how to onboard a Claude Code or Codex agent with its own keypair, where Buzz genuinely beats Slack-plus-bots, the compliance gaps that should keep it out of production today, and the hardening checklist the same week's OpenAI–Hugging Face incident makes non-negotiable.
Read the full version with code samples, diagrams, and architecture details: Block's Buzz (2026 Guide): Self-Host the Workspace Where AI Agents Are Teammates, Not Bots
More engineering notes: rohitraj.tech/en/notes
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