Summary
Creator Magic walks through the mobile launch of Buzz, Block’s open-source AI agent workspace that arrived on iPhone and Android over a recent weekend. Built on the Nostr protocol, Buzz uses cryptographic keys for identity rather than traditional accounts — no login, no password, no cloud dependency. The architecture is worth understanding clearly: AI agents run on a user’s own computer or a VPS, while the phone acts as a remote control. Once that distinction clicks, the rest of the system makes sense.
The tutorial covers the complete setup flow: downloading the desktop app from buzz.xyz, pairing via a temporary QR code that generates a six-digit safety confirmation, creating custom agents with specific behavioral instructions, and adding them to shared channels. The host creates a demonstration agent called Haiku — configured to respond only in haiku form — and shows it responding to text, photos, and video sent directly from a phone camera. The agent correctly describes a can of sparkling water and identifies smoke rising from skewers in a cooking video, demonstrating working multimodal capabilities on mobile.
Beyond the core demo, the video covers multi-community support (multiple Buzz communities accessible from one mobile app), custom emoji reactions that function as cryptographic approval signals for agent actions, the ability to connect to locally hosted LLMs shared by community members, and a search interface for browsing prior agent activity. Buzz is free and open source from Block, Jack Dorsey’s company, positioning it as a self-hosted, privacy-preserving alternative to centralized AI agent platforms.
📺 Source: Creator Magic · Published July 27, 2026
🏷️ Format: Tutorial Demo
