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

# Installation

> Install and launch Light SDK on macOS or Windows.

<Tabs>
  <Tab title="macOS">
    Light SDK requires macOS 12 or later.

    <Steps>
      <Step title="Download the app">
        Grab the latest `LightSDK-macOS.zip` from the [LightSDK releases page](https://github.com/Light-718/LightSDK-releases/releases/latest), then unzip it.
      </Step>

      <Step title="Move it to Applications">
        Drag `LightSDK.app` into your **Applications** folder.
      </Step>

      <Step title="Open it the first time">
        Right-click the app, click **Open**, then click **Open** again to bypass the Gatekeeper warning. macOS remembers this, so future launches are a normal double-click.
      </Step>
    </Steps>

    <Note>
      The right-click step is only needed because the app is ad-hoc signed. A notarized build opens with a normal double-click.
    </Note>
  </Tab>

  <Tab title="Windows">
    Light SDK requires Windows 10 (version 1803 or later) or Windows 11.

    <Steps>
      <Step title="Download the app">
        Grab the latest `LightSDK-Windows.zip` from the [LightSDK releases page](https://github.com/Light-718/LightSDK-releases/releases/latest), then unzip it anywhere.
      </Step>

      <Step title="Launch the app">
        Double-click `LightSDK.exe`. No installer needed.
      </Step>
    </Steps>

    <Note>
      Light SDK on Windows uses [Microsoft Edge WebView2](https://developer.microsoft.com/en-us/microsoft-edge/webview2/), which ships pre-installed on Windows 10 (1803+) and Windows 11. If the app fails to start, download and install the WebView2 Evergreen Runtime from that link.
    </Note>
  </Tab>
</Tabs>