Vaadin
The Vaadin renderer is Mateu’s default frontend. It uses Vaadin Lumo web components and works with Spring Boot, Quarkus, Micronaut, and Helidon.

Demo: https://vaadin.mateu.io/
Add to your project
Section titled “Add to your project”<dependency> <groupId>io.mateu</groupId> <artifactId>vaadin-lit</artifactId> <version>2.4.94</version></dependency>This is the renderer used in all Mateu quickstart guides and examples.
Characteristics
Section titled “Characteristics”- Clean, professional look suited for business applications
- Full component coverage: forms, grids, dialogs, notifications, charts
- Light and dark mode support
- Accessibility-first