In Heirloom Troff, is it possible to just load an OTF font (or another supported format) via a URI? I’m trying,
.fp 10 R /Users/jacob/Restore/Fonts/Roboto/Roboto-Medium.ttf ttf .ft 10 .ft R Test
I’m not having any luck, and it’s really hard to find documentation on this. Is it possible to load fonts like this, and if not, what steps does it take to use custom fonts?