https://bugzilla.redhat.com/show_bug.cgi?id=1556854
--- Comment #9 from Nicolas Mailhot nicolas.mailhot@laposte.net --- Please don't start inventing one of a kind fontconfig syntaxes
Apply the templates in fontpackages-devel, they've served us well for a decade without any spectacular failure
You want to substitute fonts? There is a substitution template. Read its doc and apply it
It will tell the substitution rule needs to go in the noto font package because 1. it's useless without the noto font files 2. when there is no cantarell font at all on the system you can the substitution to occur for the rest of the glyphs too
Also, it will tell you *not* to play locale restrictions as it's a recipe for more problems later if encoding coverage of the font files changes. If a design is visually compatible it's visually compatible for the whole font, not just parts of it.