i feel you, jwr. at my previous startup i've developed everything with clojurescript. our dashboard, our browser plugin, our react native app was all cljs except for the api which i built with django.
thanks to clojurescript, i was able to build all these tools so fast and clean, we had a lot of time to work on the business itself. we failed to find a product market fit though.
to every new founder out there who always wanted to try clojurescript, if you are going to work on a client application and love react, i cannot stress enough how easy and fast it is to develop with clojurescript and re-frame.