Guides - RubyGems GuidesLearn how RubyGems works, and how to make your own. The RubyGems software allows you to easily download, install, and use ruby software packages on your system. The software package is called a “gem” which contains a packaged Ruby application or library. Gems can be used to extend or modify functionality in Ruby applications. Commonly they’re used to distribute reusable functionality that is share
