This project can be used as a starting point to create your own Vaadin Flow application with Spring Boot. It contains all the necessary configuration and some placeholder files to get you started.
The best way to use it by via vaadin.com/start - you can get only the necessary parts and choose the package naming you want to use.
Import the project to the IDE of your choosing as a Maven project.
Run application using
mvn spring-boot:run
Open http://localhost:8080/ in browser
For documentation on using Vaadin Flow and Spring, visit vaadin.com/docs
For more information on Vaadin Flow, visit https://vaadin.com/flow.