Explore event-driven microservices architecture implementation in functional programming through this comprehensive conference talk. Learn how to leverage Domain Driven Design for creating microservice boundaries, use F#'s discriminated unions to capture domain models, and implement custom workflows with computation expressions. Discover the benefits of event-driven architecture in solving distributed data challenges, and understand the implementation of distributed sagas for coordinating microservices. Dive into event sourcing techniques using F#'s List.fold operation, and explore evolutionary architecture aspects. Gain insights on modeling services as pure functions, achieving infinite scalability through immutability, and simplifying testing processes. Master the art of creating scalable, highly distributed web services in F#, demonstrating how functional paradigm naturally captures the behavior of modern service architectures.