--- title: Jack Dorsey launches Buzz to combine team chat, AI... description: Block's Jack Dorsey has launched Buzz, an open-source self-hostable workspace that unifies team chat, AI agents, Git hosting, and workflow automation under a... canonical: https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting | daily.dev og:description: Block's Jack Dorsey has launched Buzz, an open-source self-hostable workspace that unifies team chat, AI agents, Git hosting, and workflow automation under a... og:url: https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n og:image: https://api.daily.dev/og/posts/ybjDGrV2n.png og:image:alt: Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting **[Hacker News](https://daily.dev/sources/hn)** · 5 min read · 0 upvotes · 0 comments ## Summary Block's Jack Dorsey has launched Buzz, an open-source self-hostable workspace that unifies team chat, AI agents, Git hosting, and workflow automation under a single identity system built on cryptographically signed Nostr events. Agents and humans share the same key-pair-based identity, allowing agents to participate as full workspace members — searching discussions, submitting patches, reviewing code, and running workflows. Buzz integrates harnesses for Goose, Codex, and Claude Code. The project is positioned as a replacement for Slack and GitHub within Block, though it remains early-stage: mobile clients are unfinished, push notifications are pending, and some workflow features lack complete execution paths. The architecture is self-hostable but not peer-to-peer — each deployment relies on a single authoritative relay. The repository is Apache 2.0 licensed and version 0.4.21 shipped on July 21st. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#devtools](https://daily.dev/tags/devtools), [#ai-agents](https://daily.dev/tags/ai-agents), [#git](https://daily.dev/tags/git) [View this post on daily.dev](https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting","url":"https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n"},"datePublished":"2026-07-21T18:39:11.526Z","dateModified":"2026-07-23T11:49:08.934Z","description":"Block's Jack Dorsey has launched Buzz, an open-source self-hostable workspace that unifies team chat, AI agents, Git hosting, and workflow automation under a...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0f431f38da3e657bec088b01510d3594?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0f431f38da3e657bec088b01510d3594?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hacker News","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hacker News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hn","url":"https://daily.dev/sources/hn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/jack-dorsey-launches-buzz-to-combine-team-chat-ai-agents-and-git-hosting-ybjdgrv2n","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"devtools,ai-agents,git","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker News","item":"https://daily.dev/sources/hn"},{"@type":"ListItem","position":3,"name":"Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting"}]} ```