To add a little more to the history, I made the switch from rvm to rbenv when rvm broke under me (I can&#x27;t remember now whether it was `cd`-hooking or rubygems-bundler which broke the camel&#x27;s back).  I made the switch from rbenv to chruby when rbenv&#x27;s shims broke.  Chruby does so little that there&#x27;s almost nothing <i>to</i> break, so I&#x27;ve stayed there.