How do I get/access/use WebControl?

Total noob with this arduino stuff. I am trying to access WebControl and instead of opening a tab in chrome, like I see in EVERY video, I just get shuffled to GitHub to their WebControl page and “how to set up”. Trouble is i don’t have a WebControl to set up. Nothing is working and i can’t find it anywhere. Where is it? Where do i go to access the UI? every video assumes you already have WebControl sorted. I don’t. Please help.

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