The demo applications will be developed using Spring Boot. It is assumed you already have an understanding of Spring Boot. If not, have a look at the Getting Started page for more information.
I will be using the Spring Tool Suite with Gradle STS support. The application will be running in embedded Tomcat with an in-memory DB at first. I'm developing on a Windows 10 machine but these instructions should work wherever for the most part. If you are using a different IDE (IntelliJ maybe?) you'll have to adjust accordingly but it shouldn't be a problem.