This document introduces the ForkCMS Deploy Gem, which is a Capistrano extension that provides features for deploying Fork CMS websites. It allows for instant switching between environments, rollbacks to previous deployments, and supports all versions of Fork CMS. The gem makes the deployment process customizable by allowing migrations, locales, code execution, and more to be added to deployments. Basic usage involves installing Capistrano and the gem, creating a Capfile, configuring deployment settings, and then using Capistrano commands like 'cap deploy' to deploy a site.