You need Maven 3 and Java 8 or higher to build Tobago 2.
In the main directory you can use
mvn install
to run the “install” target on all sub-modules.
Go to the demo example directory:
cd tobago-example/tobago-example-demo
Run with Java 8, JSF 2.0, CDI 1 and Jetty 9:
mvn jetty:run
Run with Java 11, JSF 2.3, CDI 2 and Jetty 10:
mvn jetty:run -Djsf=myfaces-2.3