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

# Practice & Local Environment Guide

> Overview of xkat Cloud VM environments and local machine connection.

The xkat platform enables you to practice instantly in your browser via Cloud VMs and sandboxes **without installing extra programs or virtual machines (such as WSL or Docker)**.

<Note>
  **Note for Windows users**: You no longer need to install WSL (Windows Subsystem for Linux) or setup complex virtualization software manually. All standard programming lessons run safely inside Cloud VMs.
</Note>

***

## 1. Cloud VM & Web Sandbox (Default)

Most introductory and advanced lessons (Python, C/C++, Java, Rust, SQL, React, etc.) **run 100% directly in your web browser**.

* **Automatic Connection**: A cloud-isolated sandbox is automatically assigned when you enter a lesson.
* **Zero Installation**: Provides a consistent, safe environment regardless of your operating system (Windows, macOS, Linux).

***

## 2. Local Agent Connection (Optional Labs Only)

Only for specialized lessons that interact with local hardware (Arduino/Raspberry Pi) or desktop apps (Blender, Sonic Pi, local CLI tools), connect your machine using a single command below.

<Steps>
  <Step title="Verify Node.js 18+">
    Ensure Node.js (version 18 or newer) is installed on your machine:

    ```bash theme={null}
    node -v
    ```
  </Step>

  <Step title="Run xkat Agent">
    Open your terminal (Windows CMD/PowerShell, macOS Terminal, or Linux Bash) and run:

    ```bash theme={null}
    npx xkat-cli@latest up
    ```
  </Step>
</Steps>