> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usefused.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Install

> Install the Harnest CLI and verify its managed runtime.

Install the native CLI and its managed runtime on macOS or Linux.

| Property          | Value           |
| ----------------- | --------------- |
| Platforms         | macOS and Linux |
| Architectures     | AMD64 and ARM64 |
| Python required   | No              |
| Installed command | `harnest`       |

<Steps>
  <Step title="Run the installer">
    ```bash theme={null}
    curl -fsSL \
      https://raw.githubusercontent.com/Usefused/harnest/main/install.sh |
      sh
    ```

    The installer shows the selected version and destination paths before asking for confirmation.
  </Step>

  <Step title="Verify both layers">
    ```bash theme={null}
    harnest --version
    harnest doctor
    ```
  </Step>
</Steps>

<Note>
  A Harnest release includes the native CLI, its matching Python runtime package, and the `uv` bootstrapper. You do not need a preinstalled Python.
</Note>

See [Installation and releases](/harnest/reference/installation-and-releases) for version pinning, non-interactive installation, upgrades, checksums, and private forks.