I would guess the reason you haven't gotten much response yet is that it's not clear what aspect of that site you want to reproduce, or more generally what is your goal here? If you want to statically render versioned notebooks, Github or NBviewer does a good job of that. You could also use nbconvert as part of a static site-builder workflow. Alternately you could set up repositories to run through Binderhub using
mybinder.org links. Reimplementing all of Kaggle on your personal webpage is probably beyond your means, and also massive overkill if you just want to showcase some notebooks that you made. But, if you have a team and funding ready to get started implementing a Kaggle competitor or other data-science-portal type thing, then by all means let this community know and you might get a different level of interest.