Question: I'm trying to get Apache to interpret my Ruby files but I don't understand how to do it. I'm not concerned with Rails right now, only Ruby. What I've found by Googling only confuses me. Any advice?

Answer: 
You can execute ruby scripts with fast cgi. Look at the [fcgi project](https://rubyforge.org/projects/fcgi/) for more information.
Try [modruby](http://www.modruby.net/en/).