Ophal version of route(menu) callbacks(ala D6/D7):

gistfile1.lua

--[[
  Implements hook route().
]]
function route()
  items = {}

  -- Local callback, no arguments
  items['frontpage'] = {
    page_callback = 'front_page',
  }

  -- External page callback function (it belongs to another module)
  items['content/stats'] = {
    page_callback = {module = 'content',  'stats'},
  }

  -- Local access callback, with arguments
  items['user/account'] = {
    page_callback = 'account_page',
    access_callback = {'access', 'administer migrations'},
  }

  return items
end

-- You tell me how elegant/awkward is this.