For Windows, it's the Fonts control panel. For Macs, that is often Font Book or Font Explorer X. You'll want to install these into the Font Manager that your operating system uses to manage fonts. otfs/Font Awesome 6 Sharp-Regular-400.otf otfs/Font Awesome 6 Duotone-Solid-900.otf otfs/Font Awesome 6 Brands-Regular-400.otf otfs/Font Awesome 6 Free-Regular-400.otf Here's a rundown of what font file corresponds to which Font Awesome style: Font Files
Get up and running using ligatures to insert icons into your documents by first installing all of the styles you'd like to use.
