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Downloads

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Release Builds

Download Mux

Download pre-built binaries from the releases page.
  • macOS: Signed and notarized DMG (separate builds for Intel/Apple Silicon)
  • Linux: AppImage
  • Windows (alpha): Installer exe

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Development Builds

Download pre-built binaries of main from GitHub Actions:
  • macOS: Signed and notarized DMG
    • build-macos-x64 (Intel Macs)
    • build-macos-arm64 (Apple Silicon)
  • Linux: build-linux AppImage (portable, works on most distros)
  • Windows: build-windows installer exe
To download:
  1. Go to the PR workflow (main branch)
  2. Click on the latest successful run
  3. Scroll down to “Artifacts” section
  4. Download the appropriate artifact for your platform

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Installation

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macOS

  1. Download the DMG file for your Mac:
    • Intel Mac: macos-dmg-x64
    • Apple Silicon: macos-dmg-arm64
  2. Open the DMG file
  3. Drag Mux to Applications folder
  4. Open the app normally
The app is code-signed and notarized by Apple, so it will open without security warnings.

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Linux

  1. Download the AppImage file
  2. Make it executable: chmod +x Mux-*.AppImage
  3. Run it: ./Mux-*.AppImage

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Windows

(alpha) Prerequisites:
  • Install Git for Windows (includes Git Bash). WSL is not supported.
  • Restart Mux after installing Git for Windows.
  1. Download the installer exe from releases (e.g., mux-x.x.x-x64.exe)
  2. Run the installer
  3. Follow the installation prompts
  4. Launch Mux from the Start menu or desktop shortcut
Windows support is currently in alpha. Please report any issues you encounter.

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Testing Pre-Release Builds

Only builds from the main branch are signed and notarized. If you’re testing a build from a pull request or other branch, you’ll need to bypass macOS Gatekeeper:
  1. After installing, open Terminal
  2. Run: xattr -cr /Applications/Mux.app
  3. Run: codesign --force --deep --sign - /Applications/Mux.app
  4. Now you can open the app normally

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CLI via npm

The Mux CLI can also be run directly via npx without installing the desktop app: 
# Run agent tasks
npx mux run "Fix the failing tests"

# Start the server for remote/mobile access
npx mux server --port 3000
Or install globally: 
npm install -g mux
This is ideal for CI/CD pipelines and scripted automation. See the CLI documentation for all available commands and options.