The document discusses using MageBridge to embed Magento e-commerce functionality into a Joomla website. MageBridge allows Magento to be installed as a Joomla component, avoiding separate administrations. Setup involves installing Joomla, Magento, and MageBridge separately and then configuring the connection between them. MageBridge handles templating and uses Magento URLs, providing a coordinated shopping solution without requiring separate instances or administrations.