This is a utility library with shared functions that are helpful in writing your own transformers.
Tests can be run with go run github.com/onsi/ginkgo/ginkgo -r.
The docker images are base images used to build and run vdb processes (such as execute and header-sync). They are base images and are not useful on their own. However the docker-compose file provides a fully running vulcanize setup that you can use as-is or customize for your own needs.