Dotfile Repository – Browse Annotated .dotfiles (configuration files) in a directory tree, and find working examples to help you configure your favorite program.
It used to be much more common for users to be on the same system a la SDF, share resources, run shared and personal programs from their shell prompt, but not be Admins. Nowadays, it's much more common for people providing programs or scripts to assume everyone's an admin, and can load whatever library or do whatever admin-level install they need to.
Here at SDF, there are two ways to get programs or libraries installed so your programs & scripts can use them