Radiant as an application

Hi, it is possible to use Radiant as an application not like a gem
package. I would like to create web pages in Radiant. Then I want to
start Rails and type localhost to my webbrowser and after that I want to
see pages created in Radiant. Because I want to use as many installation
of Rails as many webpages I need - I know there is a multisite extension
but just to know. Thanks.