Not only experimental. I've been running HashQL in production for over a year now. I really wish I had time to write about it. I'm going to present it at https://speakeasyjs.com/ on the 7th of May, so I'll have to get something ready until then at least.

I wish I had time to try it out ;) Make sure to share that video of your presentation via the mithril channel on gitter so that I don't miss it.