I think it would be useful to port https://github.com/clojure/tools.cli to Joker as joker.cli. I'm a big fan of having proper command line argument parsing, even for small scripts (because of my generally vague memory).
Small note, maybe off topic: planck, a CLJS repl also suited for scripting, already supports this.
oh wait, tools.cli, not tools.deps, sorry, my bad