Modified for personal use. Points to my own domain.

invidious-bookmarklet.js

// The bookmarklet does a couple things:
// If the current page in the browser is a YouTube page, it will open that video in `invidious.xyz`
// If the current page in the browser is _not_ a YouTube page, it will open the `invidious.xyz` homepage
//
// To use: Copy/Paste the code below into the bookmark's address:

javascript:location.hostname.includes("youtube.com")?location.assign("https://invidious.tangentfox.com"+location.pathname+location.search+location.hash):location.assign("https://invidious.tangentfox.com");