Thanks for checking it out. Yeah, I'll put the code on github for the Flems module during the weekend. I think the intro might have been a bit confusing as there's actually 2 parts to this.

Flems the module: A "js webapp / module" named Flems, which is a Web sandbox/playground that can easily be customized through options & embedded on any site (think programatically setting up playgrounds for example code in documentation etc.).

Flems.io the website: Then there's Flems.io which was launched here, that is a website using the Flems module, and on top of that puts all the state inside the URL. This allows for easy sharing, forking & editing of code examples.

Hope that clears it up a bit

Don't know if it might make sense to do another Show HN for the module once it's up on github?