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

# Development setup

> Prepare a local environment and run DeepSeek Harness Desktop from source.

Development requires both the JavaScript frontend toolchain and the Rust/Tauri platform
toolchain. The released app does not require these tools.

## Prerequisites

* Node.js 20 or later.
* Rust 1.77.2 or later with Cargo.
* Corepack and the repository-pinned pnpm `10.28.2`.
* Git and platform-specific Tauri dependencies.

<Tabs>
  <Tab title="Windows">
    Install Microsoft C++ Build Tools with the MSVC workload and WebView2.
  </Tab>

  <Tab title="macOS">
    Install Xcode Command Line Tools:

    ```bash theme={null}
    xcode-select --install
    ```
  </Tab>

  <Tab title="Ubuntu / Debian">
    Install WebKit2GTK and Tauri build packages:

    ```bash theme={null}
    sudo apt update
    sudo apt install libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
    ```
  </Tab>
</Tabs>

## Run from source

<Steps>
  <Step title="Clone the repository">
    ```bash theme={null}
    git clone https://github.com/dsh-tauri-desk/deepseek-harness-desktop.git
    cd deepseek-harness-desktop
    ```
  </Step>

  <Step title="Activate pinned pnpm">
    ```bash theme={null}
    corepack enable
    corepack install
    ```
  </Step>

  <Step title="Install dependencies">
    ```bash theme={null}
    pnpm install --frozen-lockfile
    ```
  </Step>

  <Step title="Start Tauri development">
    ```bash theme={null}
    pnpm tauri dev
    ```
  </Step>
</Steps>

The frontend development server runs at `http://localhost:1420`; the debug Harness
service defaults to `127.0.0.1:3081`. Debug data is isolated from the release app.

<Note>
  `pnpm dev` starts only Vite. Use `pnpm tauri dev` when testing native commands,
  runtime installation, service lifecycle, windows, or updater behavior.
</Note>