@ChrisM - Thanks! I had seen these odd blips about embedded & embedding fonts ...

That it's CSS, and a URL-pointer for the modified font-file, makes it preferable to a 'service model' .

I took a little Latin and Greek, and have a few special interests. The 1086 Domesday Book of England is now online, with searchable translations of the Norman Latin (and an API for the whole database). Currently, you can get modern English, beside an image of the text from the book.

A custom font for the Domesday Latin is anticipated. The entire book was hand-written by one person, so it is consistent throughout.
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My specific interest in AwesomePress, and Font Awesome, is that it can potentially enhance the appearance of an aggressively low-bandwidth WordPress installation (a special project of mine).