This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Gem::Specification.homepage (from ruby core) --- The URL of this gem's home page Usage: spec.homepage = 'https://github.com/ruby/rake'
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.