Launchy is helper class for launching +cross-platform+ applications. There are application concepts (browser, email client, etc) that are common across all platforms, and they may be launched in different manners. Launchy is here to assist in launching the appropriate application on the appropriate platform from within your ruby projects.
Gemfile gem 'launchy', '~> 0.1.2'
install gem install launchy -v 0.1.2