In this chapter, we have taken a better look at Jenkins. We have learned how to configure Jenkins, how to install and use plugins, how to create a project and expand on it as our needs for quality grow, and how to install Jenkins slaves and run multiple projects consecutively. In addition, we have played around with SonarQube and its quality gates and profiles. All in all, it is a lot of work to set up everything, but it is worth it in the long run. Your code is automatically reviewed and tested on multiple browsers, which ensures some baseline quality for your software. In the next chapters, we are going to expand on backend technologies, starting with Node.js and MongoDB, and learn how to fit those into Jenkins.