Rvm

Why

Rvm is a Ruby Version Manager allowing to select and manage multiple versions of Ruby by installing them to your home directory. Over time I have used this tool with many projects with good success.

On the macOS I have found its best to have Brew installed as well so that it has the tools needed to intall support libraries.

Selecting versions and gemsets

While Python has the idea of pipenv and virtualenv, when using rvm you have gemsets. These are just like Python’s virtualenvs but also a little differnt. There is great documentation on the https://rvm.io website about how todo this, but here are my most popular commands I use to get some Ruby projects done:

# if first time intalling
rvm install #.#.#
rmv use #.#.#
# pick a project
# name for working on
rvm gemset create the-project-name
rvm gemset use the-project-name
# now you can install packages
# and not worry about conflict
gem install package-you-want