optional-dependencies
There are 4 repositories under optional-dependencies topic.
airvzxf/archlinux-optional-packages
Command-line tool that get the optional dependencies from some specific package using pacman. Furthermore, you can install it in your Arch Linux.
alexander-schranz/composer-optional-dependencies
An article about how to handle optional dependencies with composer.
cityssm/node-has-package
Tests if a package is available to be imported. Useful for checking if optional dependencies are installed.
maysukyinaing/optional-dependencies
Angular optional-dependencies practice