Install Ruby 3.0 · Mac · Complete Guide

How to install Ruby on a Mac. Installing Ruby 3.0 on macOS Big Sur or Catalina. Up-to-date and kitchen-tested instructions, with troubleshooting tips, from the author of the book, Learn Ruby on Rails.This article will help you set up a development environment using Ruby on a Mac, whether you are an experienced developer setting up a new computer or only a beginner.If you intend to develop web applications with Rails, switch to the guide Install Ruby on Rails on macOS. It covers installation of Ruby, Node, Yarn, and Rails.