Widget composition
Compose independent views from one shared notebook controller.
Dependency graph
Inspect keyed cells, variable dependencies, and diagram exports.
Themes and pinned source
Apply Notebook Kit themes and show selected cell source.
Export Notebook Kit HTML
Serialize notebooks to Notebook Kit documents and round-trip them.
Browser execution and network access
Runtime profiles, builtins, module imports, and the network boundary.
pyobservablejs and pyobsplot
Choose by whether the unit you are building is a Plot figure or a notebook.