In this chapter, we learned how easy it is to abstract our application's configuration away from our application code. We then demonstrated how we can serve our application as a standalone app, using the embedded Jetty server. We also learned how to package an uberwar in case we wanted to deploy to a Java application server, such as GlassFish.
At this point, you have enough knowledge to be able to start writing web applications using Clojure. Did we cover everything? No, but that's why the book isn't 700 pages. However, what we did cover are the essentials, and, anything else from this point forward you should be able to learn while hitting a pint of beer and flicking through web pages on your phone. So go out and write, my friend, and bring peace and joy into this world!