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Rails setup
Setup a Rails project without installing Rails globally.
echo '# frozen_string_literal: true
source "https://rubygems.org"
gem "rails"
' > Gemfile
bundle config set --local path vendor/bundle
bundle install
bundle exec rails -v
# Rails 6.0.3.4
bundle exec rails new blog # maybe . rather?
# Initialized empty Git repository in /Users/mcurrin/repos/rails-quickstart/blog/.git/
From https://guides.rubyonrails.org/getting_started.html