nototools/merge_fonts.py at main · googlefonts/nototools · GitHub

% pyftsubset --help pyftsubset -- OpenType font subsetter and optimizer pyftsubset is an OpenType font subsetter and optimizer, based on fontTools. It accepts any TT- or CFF-flavored OpenType (.otf or .ttf) or WOFF (.woff) font file. The s…

fonts - How to use pyftsubset of Fonttools inside of the python environment, not from the command line - Stack Overflow