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

Of course, the complexity comes from:
- Updates and install in the same script.
- Logging
- Providing user defaults.
- Respecting local user rbenv installations when doing an update.
- Exposing rbenv rubies via update-alternatives
etc.

I think we'd agree any rbenv is more complicated than `sudo apt-get install ruby`

;)