Discover the art of creating and publishing Ruby gems in this 31-minute conference talk from RubyConf 2021. Learn the basics of gem creation in just 15 minutes, then delve into advanced topics such as determining when to create a new gem and how different gem types impact design, testing, and maintenance. Gain valuable insights from a decade of experience, including lessons on avoiding design missteps, managing dependencies, and navigating versioning challenges. Walk away with actionable advice to ensure your next Ruby gem is not just functional, but truly exceptional.