I used this add-on as an example how to add speech recognition to you Vaadin apps. This makes it so easy to test it locally:
- Create a new project from "Install" menu
- Import to IntelliJ
- Replace the code in HelloWorldView with the sample on this page
- Debug Application class
Read more about it here: dev.to/samiekblad/happy-path-adding-speech-recognition-to-vaadin-apps-3abm