Anthropic chatbot - Build a conversational agent RailsConf CFP App - Manage CFP submissions RailsConf Scheduler - Schedule talks, rooms, etc. Ruby Rogues Podcast Site - Manage episodes, guests, etc. Ruby on Rails Tutorial App - Build the sample app from the book Ruby Style Guide - A style guide for Ruby code Ruby Style Guide App - Enforce style guide on code reviews Ruby Style Guide Linter - Lint code against a style guide Ruby Style Guide Website - Publish the style guide online Ruby Style Guide Gem - Distribute the style guide as a gem