[chocolateboy]

Depends on the system. The default on Arch Linux is local gem installs:

    $ cat /etc/gemrc
    # --user-install is used to install to $HOME/.gem/ by default since we want to separate
    #                pacman installed gems and gem installed gems
    gem: --user-install

[astrodust]

That's a nice touch and some good work on the part of the package maintainer. Most (Ubuntu, RedHat, etc.) do not, they just expect you to sudo everything.