> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-eb-mini-app-ia-overhaul.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Forking Mainnet

> Create a copy of the mainnet to run advanced tests.

export const Video = ({videoId, title}) => {
  const videoContainer = {
    position: 'relative',
    width: '100%',
    height: '0',
    paddingBottom: '56.25%',
    marginBottom: '15px'
  };
  const video = {
    position: 'absolute',
    top: '0',
    left: '0',
    width: '100%',
    height: '100%'
  };
  return <div style={videoContainer}>
      <iframe style={video} src={`https://player.vimeo.com/video/${videoId}`} allow="accelerometer; autoplay; gyroscope; fullscreen; picture-in-picture" title={title} />
    </div>;
};

# Forking Mainnet

<Video videoId="844047412" title="Mainnet Forking" />