You could repost this as a Show HN (see https://news.ycombinator.com/showhn.html) and it might have a better chance at getting attention. If you do, definitely keep this patch allowing guests to create their own experiences, because you'll get better feedback if users can access the full system.

Also, your text should go into a little more detail about what this product actually is and how it works. Your description at https://news.ycombinator.com/item?id=40138318 is ok, but a bit too high-level for HN.

I hope this helps!