See about getting this (or similar) into rubot

derp_controller.rb

class DerpController < VariableController
  controller_variable :derp_con

  command :con, :protected => true do
    if message.text.empty?
      reply derp_con
    else
      self.derp_con = message.text
    end
  end

  channel_variable :derp_chan

  command :chan, :protected => true do
    if message.text.empty?
      reply derp_chan
    else
      self.derp_chan = message.text
    end
  end
end

variable_controller.rb

class VariableController < Rubot::Controller
  def self.controller_variables(*vars)
    vars.each do |var|
      define_method(var) { convars[var] }
      define_method("#{var}=") { |value| convars[var] = value }
    end
  end

  def self.channel_variables(*vars)
    vars.each do |var|
      define_method(var) { chavars[message.to][var] }
      define_method("#{var}=") { |value| chavars[message.to][var] = value }
    end
  end

  class << self
    alias_method :controller_variable, :controller_variables
    alias_method :channel_variable, :channel_variables
  end

  private

  def self.convars
    @convars ||= {}
  end

  def convars
    self.class.convars
  end

  def self.chavars
    @chavars ||= Hash.new { |h,k| h[k] = {} }
  end

  def chavars
    self.class.chavars
  end
end