You can explore the Apache Causeway™ programming model through the reference app, which illustrates many of the framework's annotations and programming conventions.

The app is available as a Docker image.

• to run the JPA variant:

  docker pull apache/causeway-app-referenceapp-jpa:latest
  docker run -p 8080:8080 apache/causeway-app-referenceapp-jpa:latest

... then navigate to http://localhost:8080

Prereqs:

• mvnd 3.9+
• Java 21

Building:

• To build the JPA variant:

  mvnd -Dwicket-jpa install