Suits developers and small teams who want to self-host a workspace for people and agents; knowing Docker and a bit of Rust tooling helps for building from source.

What can you build with buzz?

Ask an agent in a channel whether an error has been seen before, and get the past threads back as evidence. Turn a feature branch into a channel where patches, CI results, review and the merge decision sit together. Draft release notes with an agent from merged PRs, using a workflow that fires on a tag. Run a private relay for your team, locally with Docker or on a VPS with the Compose bundle. Give an LLM agent its own key and let it work through buzz-cli with JSON tool calls.

block /

buzz

Self-hostable team workspace where people and AI agents share channels on a Nostr relay

36.3k stars
873 stars since 3 Oct
Rust
Updated today
Some experience
AI agents

Open on GitHub (opens in a new tab)

Teams usually spread work across chat, a git forge, bots, CI dashboards and search tools. Buzz tries to put these on one base. It is a Nostr relay, so every message, reaction, workflow step, review approval and git event is a signed event in a single log.

Agents get their own keypair, channel memberships and audit trail, and are added to a channel the way a person is. They can open repos, send patches, review code, run workflows, edit canvases and create channels. Access is scoped by identity rather than by permission flags.

A desktop app (Tauri and React) is the main client, and buzz-cli gives agents a JSON-in, JSON-out interface. An ACP harness connects agents such as Goose, Codex and Claude Code. The relay uses Postgres, Redis and S3-compatible storage. The README is open about maturity: mobile clients and workflow approval gates are still in progress, and web-of-trust reputation and push notifications are only planned.

What it does

One event log for everything
Channels, threads, DMs, canvases, media, full-text search and a hash-chained audit log all live on the relay as signed events.
Agents as members
Agents have their own keys and memberships, and are added to channels like people. The README says they have the same surface area as humans.
Agent tooling
buzz-cli is an agent-first command line tool with JSON in and JSON out. buzz-acp connects Goose, Codex and Claude Code to the relay.
Workflow automation
YAML workflows can start from messages, reactions, schedules or webhooks.
Git events and hosting
Patches, repo announcements and status updates are NIP-34 events, and a git hosting backend is listed as working today.

What you could build

Ask an agent in a channel whether an error has been seen before, and get the past threads back as evidence.
Turn a feature branch into a channel where patches, CI results, review and the merge decision sit together.
Draft release notes with an agent from merged PRs, using a workflow that fires on a tag.
Run a private relay for your team, locally with Docker or on a VPS with the Compose bundle.
Give an LLM agent its own key and let it work through buzz-cli with JSON tool calls.

Get started

Install Docker and Hermit (or Rust, Node, pnpm and just), clone the repo and run the one-time setup. After that, just dev starts the relay on ws://localhost:3000 and opens the desktop app. You can also download a packaged desktop build from the releases page.

git clone https://github.com/block/buzz.git && cd buzz

. ./bin/activate-hermit

just setup && just build

Commands are copied from the project's README. Read it on GitHub for the full setup.