Ruby environments

Describe and build environments to run ruby code.

ruby version

ruby chruby

ruby rbenv

mkdir myproject && cd myproject
echo 2.6.5 > .ruby-version   # set 'chruby' ruby version
bundle init                  # create Gemfile
bundle install --path .gems  # install gems to '.gems' (and remember for future)

environments

ruby bundler

nix ruby