I am trying to incorporate a blog, a wiki, and bug tracking all into my Rails webapp. Mephisto recommends starting with their whole app and making certain pages static content, but this only takes care of the blog part.
Essentially, my problem is not with Rails, but with the fact that all of these other applications have no way of integrating with the authentication, authorization, and session control in Rails. (Trac may be even more difficult to integrate than Mephisto and any given Rails-based app.)
Essentially, my question is: has anybody done single sign on work? Considered ways to use the same stylesheets and layouts for more than one project?