Will it be possible to use the CSS at-rule @font-face to define font-families, especially in conjunction to loading a font from an external source like a cdn?
Also the possibilities of the CSS attribute font-display could be nice, this controls when a font displayed/downloaded. With
font-display: swap the browser won’t wait til the font download is finished, instead it will display the normal font and swap it with the desired font as soon as its loaded.
This could decrease the “critical rendering path” / time to join.