I think you are missing the reason for the project.

In the php world, MAMP on osx is one of the reasons so many newbie jump into php. a simple app, abstracting away apache, php and mysql. you simply create a new vhost and click start.

This is the target audience - not the people who know how to clone a git repo and run a script in terminal.

He is trying to make it easy for new users and programmers. I know high school teachers that would use this to teach ruby web programming without all the error prone manual configuration.