Clojure(Script) is a mature, boring in the good sense language and ecosystem. It opened a whole subculture and dialects/ implementations like ClojureCLR, Babashka, nbb, Jank, Janet, Fennel, Joker, Basilisp, Hy, Clojerl and at least a few others I forgot to mention that can perhaps be found on this list: https://github.com/chr15m/awesome-clojure-likes

We are building apps for our clients in it, we will also have our own product built with Clojure and ClojureScript soon.