selenium boot

require 'rubygems'
require 'capybara'
require 'capybara/dsl'

Capybara.run_server = false
Capybara.current_driver = :selenium
Capybara.app_host = 'http://...'
module MyCapybara
  class FireBro
    include Capybara::DSL

    def action(params)
      ...
    end

  end
end

fire_it = MyCapybara::FireBro.new
fire_it.action(...)