font-glyphs
There are 2 repositories under font-glyphs topic.
bexter989/nerdfont-patcher
A python script that patches fonts with glyphs from the guys at www.nerdfonts.com. It also has multiprocessing support to speed up patching.
metaory/xico
⪽⪾ simple cli to make png images from any Unicode glyph character 𐓷