hedgehog/rbenv-installer — comment on commit 1057d1c8018489eca23468818b6c2db4d04d87b3
File:  line 0
By ahoward:

this seems enormously complex. we have simply this:

https://gist.github.com/1757694

and no other ruby on the system. then we just use #!/usr/bin/ruby everywhere and rbenv as normal.