ohmyzsh/plugins/chruby/README.md

chruby plugin

This plugin loads chruby, a tool that changes the
current Ruby version, and completion and a prompt function to display the Ruby version.
Supports brew and manual installation of chruby.

To use it, add chruby to the plugins array in your zshrc file:

plugins=(... chruby)

Usage

If you'd prefer to specify an explicit path to load chruby from
you can set variables like so:

zstyle :omz:plugins:chruby path /local/path/to/chruby.sh
zstyle :omz:plugins:chruby auto /local/path/to/auto.sh