rails package in Ubuntu

rails: MVC ruby based framework geared for web application development (metapackage)
ruby-actioncable: WebSocket framework for Rails (part of Rails)
ruby-actionmailbox: receive and process incoming emails (part of Rails)
ruby-actionmailer: email composition, delivery framework (part of Rails)
ruby-actionpack: web-flow and rendering framework putting the VC in MVC (part of Rails)
ruby-actiontext: edit and display rich text (part of Rails)
ruby-actionview: framework for handling view template lookup and rendering (part of Rails)
ruby-activejob: job framework with pluggable queues (part of Rails)
ruby-activemodel: toolkit for building modeling frameworks (part of Rails)
ruby-activerecord: object-relational mapper framework (part of Rails)
ruby-activestorage: local and cloud file storage framework (part of Rails)
ruby-activesupport: collection of utility classes used by the Rails framework
ruby-rails: MVC ruby based framework geared for web application development
ruby-railties: tools for creating, working with, and running Rails applications