gistfile1.rbx

require 'rubygems'
require 'configatron'

class Hello
  
  def self.say_hi
    configatron.hello
  end
  
end

configatron.hello = 'Hi Bernerd'

puts Hello.say_hi

configatron.temp do
  configatron.hello = 'Hi Bernerd @ Wieck'
  puts Hello.say_hi
end

puts Hello.say_hi

####
Hi Bernerd
Hi Bernerd @ Wieck
Hi Bernerd