Read on to learn how to install Ruby Enterprise, Phusion Passenger and El Dorado from scratch in a sort of “one-off” setting where you’ve got one server and you want it to run one site. More here
These instructions don’t use git or capistrano. The instructions contained in the El Dorado README describe how to install El Dorado using those tools. Using them makes for an easier and cleaner installation. It also makes for easier scalability, upgrading and patching: I highly recommend using those tools.