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Wait, this makes no sense. http://vm.teamtreehouse.com/ asks for the course, but it's the install course. Huh?
"Installing the Treehouse VM" course asks you to go to http://vm.teamtreehouse.com/ and the UI is totally different now. It asks for the course, but I am on Stage 1, not any of these courses. Totally totally confusing and I am still not clear if I am overwriting and why I would want a virtual machine or what one is since this is stage 1 and there has been zero explanation. Totally confusing course.
Maciej Czuchnowski36,440 Points
I think they are asking you about the course, because each of these courses uses slightly different versions of Ruby, Rails and some gems. They want to make sure you have the same environment they use in the videos in the given course (trust me, it's a torment when you use versions that are completely different from the videos). Once you get more comfortable, you can set up your own environment from scratch and use RVM and other tools to nicely change versions of Ruby and gems to adapt to different legacy applications.
If you're starting, I would go for Todo List Application in Rails 4 - simple Ruby on Rails Application was written in Rails 3, which is an old version and you could do that course later on to see the differences between v3 and v4.