I haven’t had a chance to run it in production, no. But I did make an experimental branch where I replaced some pages of my old company’s production app (which is a React app) and was able to re-create all the necessary functionality in a lot less code. So stuff like authn and authz worked correctly, desktop notifications and sounds were working (with just a few likes of JS glue code), and I was able to replicate a reasonably complex set of UI updates.