Our build and test process can be run outside of Eclipse IDE using Maven, since we use Tycho. The commands can be found in the root of the repo ("build-and-test.sh"). We also use the declarative Jenkins pipeline - see our Jenkinsfile in the root of the repo.
You can use the code from these repositories to experiment, test, build, create patches, issue pull requests, etc. This project uses Gerrit Code Review; please see contributing via Gerrit.