You can use the code from these repositories to experiment, test, build, create patches, issue pull requests, etc.
https://github.com/eclipse/hawkbit - Project repository hosted on GitHub.
https://github.com/eclipse/hawkbit-extensions - Project repository hosted on GitHub.
https://github.com/eclipse/hawkbit-examples - Project repository hosted on GitHub.
https://github.com/eclipse/hawkbit-clients-golang - Project repository hosted on GitHub.
https://github.com/eclipse/hawkbit-website - Project repository hosted on GitHub.