# Qybaihe (open-source AI desktop app)

> Qybaihe is a free, open-source AI desktop app for Windows, macOS and Linux. Mu (μ): most of what a coding agent decides isn't code. It has 555 GitHub stars and is released under the MIT license. Its source code is on GitHub at qybaihe/mu.

mu Most of what a coding agent decides isn't code. It's yes/no calls, and mu hands 40 kinds of them to a small model. Built on pi.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/qybaihe/mu |
| Platforms | Linux, macOS, Windows |
| Interface | desktop GUI |
| GitHub stars | 555 |
| License | MIT (open source) |
| Replaces | n/a |
| Language | TypeScript |
| Website | https://usemu.dev |
| Official | no |
| Category | AI desktop apps |
| Latest release | v0.3.0 (Oct 27, 2026) |
| Last commit | Oct 27, 2026 |

## Install

Download a build for your system from the project's releases (https://github.com/qybaihe/mu/releases) or website, or build it from source by following the README.

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