This is the Sling-based Sakai 3 kernel that uses OSGi.
To run:
mvn clean install
. tools/version
java -jar app/target/org.sakaiproject.nakamura.app-${K2VERSION}.jar
This will start Felix configured with Sling and the Sakai nakamura bundles.
You will find the bundles under ./bundles and some libraries under ./libraries.