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Boo: A Screen Multiplexer for Artificial Intelligence Agents

Coder released boo, a GNU screen-like terminal multiplexer with persistent sessions and a powerful API for scripting it. It gained over 600 stars in its first week.

01coder/boo 615Zig

Boo is a GNU screen-like terminal multiplexer. You open a session, detach, then reconnect later to find your session untouched, even if you lost connectivity. Unlike other terminal multiplexers, boo uses libghostty (the VT core of Ghostty) which preserves and accurately renders screen state. It’s implemented in Zig and communicates with its server via Unix sockets. Its popularity stems from its ability to script the terminal without a TTY.

Why a vibe-coder should care

With boo, you can automate long running ssh sessions or pass work to a code agent knowing that your session will persist through connectivity issues and that your bot can interact with the terminal as you would. Boo is infrastructure for robust agent workflows.

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