How do I install Ruby on Rails on OSX?
Easy, use Rails Installer
You also want to install Xcode and a package manager in order to install certain gems.
On OSX there are two choices for a package manager
- MacPorts is modelled on Debian's apt package manager. It has a large package selection.
- Homebrew is newer than MacPorts and seems to be more popular amongst Rails users.
Either one is fine.