Hey all,
You can use either the kernel gateway or a notebook server:
1. Run in the command line: `python -m notebook --NotebookApp.allow_origin="127.0.0.1"`
2. Add the kernel gateway to Hydrogen's settings:
```
[{
"name": "Local gateway",
"options": {
}
}]
```
3. Invoke the command `hydrogen:connect-to-remote-kernel`
I'd love to see people doing this with remote JupyterHub endpoints somehow.
Big thanks to Nikita Kitaev for pushing up a prototype quickly, engaging with maintainers Nico and Lukas, and bringing us all the way to being able to use kernel gateway with Hydrogen. :D