This package supports the free otf fonts from the IBM Plex
project which are available from GitHub or already part of your
system (Windows/Linux/...). This package supports only XeLaTeX
or LuaLaTeX; for pdfLaTeX use plex-mono.sty, plex-sans.sty,
and/or plex-serif.sty from the plex package. IBM Plex has no
math symbols. You will have to use one of the existing math
fonts if you need them.
