Ruby Resources A collection of resources for the Ruby programming language. Official documentation ruby-lang docs Getting started Koans Ruby Monk Why's (Poignant) Guide to Ruby Tools Awesome Ruby Ruby Gems Ruby on Rails Rails Guides The Michael Hartl Tutorial Rails + React + Relay + Graphql Rails fragment caching (video tutorial) Good to knows https://www.practicingruby.com/articles/ways-to-load-code understanding how to load files