Hello! Welcome back to “Learn You An Actor (System) For Great Good!”. If you haven’t read the first part, jump there to learn how to write a minimalistic actor runtime using Java 17. As promised, in this second part I am showing how to write a tiny chat client/server using the runtime we wrote. Then, we will run it using JBang! Next time, we will learn how to create a typed version of the same actor runtime and revisit the examples!