Community Scripts to Automatically Update Custom Fonts

[ayuhito]

Description

fontsource/font-files#1 introduced Iosevka with an auto-updating script to update all Iosevka fonts. A significant problem with current custom fonts is that they don't get automatic updates unless manually handled, which is a maintenance burden.

I think we should have a folder of community scripts in the font-files repository to automatically run in repository builds to keep all files up to date. This ensures we can keep certain popular packages regularly updated without more time needed from maintainers.

A --scripts flag which takes in a directory as an argument should be included in the CLI which runs all Node.js files in a chosen directory. We would need to consider adding useful hooks from the CLI and templates for these scripts so they could automatically rename all font files or we don't unnecessarily redownload all files unless the version value upstream has been changed for example.