Both of these rely on some of the most popular and simple libraries for web dev.
Most seem to simply use said libraries directly, mix and match what is needed.
If you’re an experienced web developer but new to Clojure, then you’re going to spend a good weekend or so to set up a proper environment, combine the necessary libs and so on, if you have some guidance. The Clojure community is quite welcoming and helpful in that regard.
There’s an initial learning curve, because it’s a functional Lisp though. That comes with some necessary re-wiring, but also with some unique powers.
The cool thing about writing Clojure is that feeling: „Really that’s it?“ when you realize how simple it is. It’s also simply fun to use, because of how interactive it is.