Very weird singleton example in ruby (with help of eigenclasses)

short.rb

# Short version of previous file (if you don't care about class names)
SomeClass = Class.new do
  class << self
    class << self
      def instance; singleton_class end
        
      class << self
        def some_method
          "here go dragons"
        end
      end
    end
  end
end.singleton_class

some_class.rb

SomeClass = Class.new do
  class << self
    class << self

      def name
        "Singleton:SomeClass"
      end

      def inspect
        name
      end

      def instance
        singleton_class
      end

      class << self

        def name
          "Instance:Singleton:SomeClass"
        end

        def inspect
          name
        end

        def some_method
          "here go dragons"
        end

      end
    end

  end
end.singleton_class