1. Install IntelliJ
2. Clone the project fom Github using git
3. Install the lombok plugin https://projectlombok.org/setup/intellij
4. Enable 'annotation processing' in settings
5. Import gradle project by right clicking on the build.gradle and telling IntelliJ to import gradle project
6. In the gradle tab at the right click the refresh symbol
7. Click on play(Run the Main.java)