I just watched a clojure talk on youtube from 2019 where the guy leading a 150-person clojure shop said that Clojurescript devs are unicorns. That's not entirely surprising given that front-end work tends to be more chaotic (many more moving parts, frameworks, dependencies, etc.).
So, if I were hoping to be a freelance Clojure dev, I would probably focus on Clojurescript+React.
Some time ago I made a conclusion that focusing on something just because there's a bigger chance of getting a higher compensation for your work is not a great approach. That is, assuming that you can be focusing just as much, if not more, on something that you enjoy doing. But of course YMMV.
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