==== Setting Up A Ruby Gems Library in your user space ====

Install with
  gem install --user-install -n~/bin **gem_name**

This assumes you want the gems in your ''~/bin'' folder, and that you have it added to your PATH


Sources: 
  * https://stackoverflow.com/questions/31596273/install-gem-in-local-folder
  * https://guides.rubygems.org/faqs/#i-installed-gems-with---user-install-and-their-commands-are-not-available