The Jupyter incubator gives emerging projects a place to evolve.
Interesting projects include:
content management extensions - Jupyter Content Management Extensions
dashboards - Jupyter Dynamic Dashboards from Notebooks
declarative widgets - Jupyter Declarative Widgets Extension
kernel gateway bundlers - Converts a notebook to a kernel gateway microservice bundle for download
sparkmagic - Jupyter magics and kernels for working with remote Spark clusters
traittypes - Traitlets types for NumPy, SciPy and friends
There’s also a repository with proposals of projects wishing to enter the incubator.