We welcome any support on maintaining and developing the NEBULA framework.
If you have an issue with NEBULA: look whether the issue you have already exists or make a new issue, and create a PR with your changes from a fork or a branch.
If you want to contribute but do not know where to start, look for an issue you can pick up, or contact the development team via j.camphuijsen@esciencecenter.nl for more guidance.