Is there a way to host these somewhere easily?
Like a git push of a notebook to a repo and you get voila powered renders (and I assume some kind of automagic lightweight kernel behind the scenes which executes the code if required).
It reminds me of DeepNote[0] though that is geared towards the producers of notebooks rather than consumers.
You can install viola and then just run it on port 8000 from within the jupyterlab terminal and you can share the url with anyone (it will be instance-id-8000.cloud.kyso.io)
We're actually thinking of supporting Viola natively in the next few weeks, what kind of app do you want to run?
[1] https://kyso.io
Don't know if there's easier solutions, this will require some setting up