Alternative to tools.cli in 10 lines of code adapted for babashka scripts that do not have a -main

script.clj

#!/usr/bin/env bb

;; See https://vlaaad.github.io/tools-cli-in-10-lines-of-code

(ns other-ns)

(defn foo [& args]
  (prn ::ns args))

(ns script)

(defn foo [& args]
  (prn ::ns args))

(let [f #(try
           (let [form (read-string %)]
             (cond
               (qualified-symbol? form) @(requiring-resolve form)
               (symbol? form) @((ns-publics (symbol (namespace `-main))) form)
               :else form))
           (catch Exception _ %))
      [f & args] (map f *command-line-args*)]
  (some-> (apply f args) prn))

;; $ script.clj foo :x bar :y true
;; :script/ns (:x "bar" :y true)

;; $ script.clj other-ns/foo :x bar :y true
;; :other-ns/ns (:x "bar" :y true)