Explore the power of service objects in Ruby using Dry.rb's Transaction library in this 30-minute conference talk from RubyConf 2021. Delve into the concept of Monads in Ruby, demystifying their implementation and understanding their significance. Discover how this fundamental concept enhances the creation of robust and easily testable service objects. Learn to leverage Dry::Transaction for seamlessly connecting these service objects, creating a powerful "business transaction" DSL with built-in error handling capabilities. Gain insights into extending transactions with custom steps and integrating them into existing applications, elevating your Ruby development skills to new heights.