While there is one piece left to add (hooking our sidebar up to point to real files), this should be a great general-purpose templating server. All that needs to be done is modifying our FILE template and hooking it into the sidebar of our templating system. With everything we have learned about Node.js, we should be able to handle almost any type of server-side application. We should also be able to understand how implementations of web servers such as Express are created from these basic building blocks.

From here, we will head back into the browser and take some of the concepts we learned from this part of the book and apply them to the web over the next couple of chapters. We will start by looking at worker threads in the browser, known as dedicated workers. We will then take a look at shared workers, and how we can benefit from being able to offload work to these workers, but still be able to grab the data from them. Finally, we will take a look at service workers, and see how they can help us with various optimizations, such as caching in the browser.