[CentOS] ruby193 SCL and mod_passenger

I'm interested in ruby and I try the ruby193 SCL and I want to run Ruby on Rails with Apache, so I'm searching mod_passenger for this ruby SCL version, but I found, that this package is not in this SCL. Are any other possibilities to run Ruby on Rails with Apache or why is mod_passenger not in this SCL?
 
Thanks,
Filip Bartmann