Confusingly, there is a Apache licensed repo you can find linked at the bottom of the site, except the files are individually relicensed, eg, https://github.com/unskript/Awesome-CloudOps-Automation/blob...
The concept is interesting. In our experience with regular and top teams trying to do notebooks for runbooks.. there are a lot of gaps around the Jupyter UI specifically and the concept in general. It's a fascinating problem to work on.