So needed for latest apps and so easy to implement
FYI for windows users check the output .css files for the src url
Correct value
src: url('fa-solid-900.woff2') format('woff2'), url('fa-solid-900.ttf') format('truetype');
Windows creates the new file with a / that when removed the icons will show
Wrong value src: url('/fa-solid-900.woff2') format('woff2'), url('/fa-solid-900.ttf') format('truetype');