But this sounds like more of an argument for good "getting started" documentation, and helpful coworkers, rather than proof that containers are any more simple

But this sounds like more of an argument for good "getting started" documentation, and helpful coworkers, rather than proof that containers are any more simple to get up and running than your average rails app. This bears repeating: in the second scenario, the new hire had somebody tell them what commands to run. Without that information, they would've been stuck Googling their way to success too. Also, I can't help but be amused at how annoying that homebrew nonsense is--aptitude on Debian is just a hell of a lot simpler.