[reitanqild]

Last I checked getting Ruby correctly installed was a mess. That was more than 2 years ago though.

Is there any way to install Ruby and required tooling correctly that comes anywhere near to installing JDK?

[envy2]

rbenv[1] makes installing and managing Ruby pretty damn straightforward, at least on *nix. Once you have Ruby itself up and running, installing any needed Gems is child's play.

[1] https://github.com/rbenv/rbenv