This is a public repository where users can open issues for the monospaced font Gintronic by Mark Frömberg.
Normally you just copy the font file(s) into your System Fonts Folder /Library/Fonts/
.
It is possible to put subfolders into that folder, I often have a folder for each font family in there.
After putting the fonts there, they are immediately available, but some apps need a restart.
You can also use a font manager like Font Book, but honestly, that is not necessary at all.
You can activate or deactivate several font features to your likings. A growing collection of how to do that in several IDEs can be found here