main_include.rb

module MyApp
  module Deeply
    module Nested
      module Namespace
      
        class Useful
        end
        
        class AlsoUseful
        end
        
      end
    end
  end
end

# meanwhile in a script...

include MyApp::Deeply::Nested::Namespace

# this works now, but...
Useful.new

# we've polluted Object with everything that's in our namespace
p Object::Useful #=> MyApp::Deeply::Nested::Namespace::Useful