Hi cesium team!
My team maintains a few open-source projects, and we've seen that having interactive examples greatly helps newcomers! We're maintaining a Binder cluster that provides ephemeral JupyterLab sessions (example). It essentially spins up a JupyterLab session with pre-made examples.
We're happy to sponsor cesium with some computing power. If you're interested, please get in touch with me! (my contact info is in my profile)