Материалы для самообучения

https://rubymonk.com/rubymonk.com

Ruby-Doc.org: Documenting the Ruby Languageruby-doc.org

Browse Ruby documentation - APIdockAPIdock

Rusrails: Ruby on Rails по-русскиrusrails.ru

Browse Ruby on Rails documentation - APIdockAPIdock

Ruby on Rails pattern: Service ObjectsDEV Community

Using Service Objects in Ruby on Rails | AppSignal BlogAppSignal

GitHub - markets/awesome-ruby: 💎 A collection of awesome Ruby libraries, tools, frameworks and softwareGitHub

Паттерны/шаблоны проектированияrefactoring.guru