The Link to the article is: https://svenruppert.com/2024/06/19/vaadin-flow-how-to-start/
This project can be used as a starting point to create your own Vaadin application. It has the necessary dependencies and files to help you get started.
The best way to use it is via vaadin.com/start - you can get only the necessary parts and choose the package naming you want to use. There is also a getting started tutorial based on this project.
To access it directly from github, clone the repository and import the project to the IDE of your choice as a Maven project. You need to have Java 8 or 11 installed.
Run using mvn jetty:run and open http://localhost:8080 in the browser.
If you want to run your app locally in the production mode, run mvn jetty:run -Pproduction.
Integration tests are implemented using Vaadin TestBench. The tests take a few minutes to run and are therefore included in a separate Maven profile. We recommend running tests with a production build to minimize the chance of development time toolchains affecting test stability. To run the tests using Google Chrome, execute
mvn verify -Pit,production
and make sure you have a valid TestBench license installed (you can obtain a trial license from the trial page).
The project follow Maven's standard directory layout structure:
- Under the 
srs/main/javaare located Application sourcesAppShell.javaconfigures the @PWA annotation making the application installableGreetService.javais a service classMainView.javais an example Vaadin view
 - Under the 
srs/testare located the TestBench test files src/main/resourcescontains configuration files and static resources- The 
frontenddirectory in the root folder contains client-side dependencies and resource files. Example CSS styles used by the application are located underfrontend/themes 
IntelliJ IDEA uses workspace.xml file to cache user-specific project configuration.
Tracking of local changes to the workspace.xml file can be prevented with the git update-index --assume-unchanged .idea/workspace.xml command.
And to revert the setting: git update-index --no-assume-unchanged .idea/workspace.xml.
- Read the documentation at vaadin.com/docs.
 - Follow the tutorials at vaadin.com/tutorials.
 - Watch training videos and get certified at vaadin.com/learn/training.
 - Create new projects at start.vaadin.com.
 - Search UI components and their usage examples at vaadin.com/components.
 - Find a collection of solutions to common use cases in Vaadin Cookbook.
 - Find Add-ons at vaadin.com/directory.
 - Ask questions on Stack Overflow or join our Discord channel.
 - Report issues, create pull requests in GitHub.
 
For a full Vaadin application example, there are more choices available also from vaadin.com/start page.