What's this about?
LCU starts OpenAI's local Computer Use runtime from the installed ChatGPT desktop app and exposes a small JavaScript interface over MCP to Claude Code, Codex CLI and Pi.
What exactly is a computer-use runtime?
It lets a model inspect screens and accessibility data, then click, type and press keys. It is the hands-and-eyes layer between language reasoning and desktop applications.
What's the community saying?
the walkthrough drew 326 likes and 49 replies; the repository had 490 stars.
- Users liked combining one model's reasoning with another product's desktop control.
- The minimal JavaScript interface can bundle several UI actions into one tool call.
- Accessibility and screen-recording permissions remain a broad security boundary, and platform support is limited.