This is awesome! I love being able to host everything that my code touches. This way I'm sure it won't leave my company or the group I'm working with.
Nice job. I like the familiar node approach.<p>ps, the author wrote a post about the CSS used to create the Material-like `:active` animations used on the demo page - <a href="https://ghinda.net/article/css-ripple-material-design/" rel="nofollow">https://ghinda.net/article/css-ripple-material-design/</a>
I wish it didn't limit the number of resources to one HTML, one JS, one CSS.<p>It would be useful to be able to add hidden libraries or frameworks to build the example code on topof them, while only showing the example code itself as editable.