ControlTower¶ ↑ ControlTower is a web application server for Rack-based MacRuby applications based on Apple’s Grand Central Dispatch libraries. It is composed of three major components: A Grand Central Dispatch based networking layer, the Mongrel HTTP parser, and a Rack web application interface. Installation¶ ↑ ControlTower can be installed as a gem using the ‘macgem` command. To build and instal