» clj -A:test
Unknown option: "--watch"

:test {:extra-paths ["test"
                                  "test-resources"]
                    :extra-deps  {lambdaisland/kaocha {:mvn/version "0.0-389"}}
                    :main-opts   ["-m" "kaocha.runner" "--config-file" "kaocha.edn" "--watch"]}

that’s weird, right?

found it, old version of org.clojure/tools.cli in deps

After listening to The REPL podcast about kaocha I finally know how to pronounce it.