gistfile1.rbx

Shoes.app do

  stack do
    @scrolling_log = stack do
      para "Something Cool"
    end

    flow do
      @add = edit_line
      button("Add", :margin_left => 5)  do 
        add_event(@add.text) 
        @add.text = ''
      end
    end
  end 
  def add_event(event)
    @scrolling_log.append do
      para event
    end
  end
end