Setting up Apache2 and passenger for Ruby 2.0.0 is actually pretty simple. As of right now, for Passenger to work with Apache2 and Ruby 2.0.0 you will need to install Passenger 4 RC4 or above, which currently isn’t (technically) a stable release. I have found it’s pretty stable though.
Install passenger through RubyGems
First, install passenger through gems:
gem install passenger --pre