This project is all about getting your own gollum wiki hosted on Red Hat's Openshift. It's quite straight forward. Just sign up for an OpenShift account and follow these instructions:

$ git clone git://github.com/openshift/gollum-openshifted.git
$ git remote rm origin
$ rhc domain create -n <your-domain> -l <email>
$ rhc app create -a <app> -t ruby-1.8 -l <email> --nogit
  <git-url>
$ git remote add openshift <git-url>  
$ git push -f openshift master

• <your-domain> - The domain name you want to use for your apps
• <email> - The email you signed up with for OpenShift
• <password> - Your OpenShift password
• <git-url> - The OpenShift git URL which you receive when creating the app

Let me know if you have problems ...

Enjoy,

Hardy