[Jack Dorsey's Block Launches Open-Source Decentralized Group Chat App Buzz, Built on the Nostr Protocol] Foresight News reports that Jack Dorsey, founder of Block (formerly Square), has announced the launch of an open-source decentralized group chat app called Buzz, aimed at reducing reliance on Slack and GitHub. Buzz is built on the decentralized social protocol Nostr and is designed for teams composed of humans and AI agents, supporting chat, project management, coding, and PR collaboration. Jack Dorsey stated that the app is decentralized, open-source, and allows users to have full control over their data, enabling teams to collaborate with members and dedicated agents in a shared space.