With Spring Boot you can develop powerful libraries that are extensible, customizable, and can be plugged into other applications easily and quickly. In this course, Spring Boot: Efficient Development, Configuration, and Deployment, you'll make the most of Spring Boot features for solid, maintainable development. First, you'll learn how to use auto-configuration and how to define conditional beans and configs. Next, you'll discover how to use properties files and YAML files to externalize application settings. Finally, you'll explore how to use profiles to offer different options for running our code. When you're finished with this course, you'll have knowledge of several ways to deploy Spring Boot applications to achieve the best performance and scalability with the least effort.