Big thanks to Lambda Island for https://github.com/lambdaisland/kaocha. Along with Clojure-LSP, it was an essential piece of the puzzle when I introduced two developers to some code I’d written. Neither developer had used Clojure before we started. Kaocha, --watch --fail-fast in particular, made for a great addition to the REPL. We had been using just the REPL for the first days, but used Kaocha (and clojure.test) to tighten down our code, and avoid accidentally breaking behavior. ❤️