Read the blog post: https://silvanhagen.com/writing/custom-driver-favicon-fetcher/

favicon-fetcher.php

<?php

use AshAllenDesign\FaviconFetcher\Facades\Favicon;

// Returns my twitter avatar
Favicon::driver("unavatar-services")
  ->fetch("https://x.com/neverything");
 
// Returns my github profile avatar
Favicon::driver("unavatar-services")
  ->fetch("https://github.com/neverything");  
  
// Returns my website favicon
Favicon::driver("unavatar-services")
  ->fetch("https://silvanhagen.com");