They do seem to be doing really nice things. And from time to time I try to keep up, watching videos on new tools and things.<p>But I guess I always get hung up on the idea that you should just write in the language that you&#x27;re targeting, and I wonder about the cost of the (admittedly pretty nice) developer experience of cljs. When you have a bug in production you&#x27;re stuck debugging the generated JS. This was also my problem with CoffeeScript.