rbenv 0.3.0-1 (i386 binary) in ubuntu trusty

 rbenv lets you easily switch between multiple versions of Ruby. It's
 simple, unobtrusive, and follows the UNIX tradition of single-purpose
 tools that do one thing well.
 .
 This package also includes the rbenv-alternatives plugin, which hooks
 into the Debian alternatives system and makes the Ruby interpreters
 registered with update-alternatives available for use with rbenv.