Clojurians Log v2

You can change the initiation by using the prefix key before jacking in. If you need it permanent, you’ll to modify .dir-locals.el. There’s a section about it in the documentation of cider

I still don't see it, hmm. For instance, I tried:

((clojure-mode . ((cider-clojure-cli-aliases . ":dev:demo")
		          (cider-clojure-cli-parameters . "-X"))))

((clojure-mode . ((cider-clojure-cli-aliases . ":dev:demo")
		          (cider-clojure-cli-command . "clojure -X")))) 

((clojure-mode . ((cider-clojure-cli-parameters . "-X:dev:demo")))) 

Just scanning the docs, I actually don’t see the option; so I might be wrong 🫤 You could put ’:run {:exec-fn …’ in an alias I guess.

The command has to be a command without any params. Also, the jack-in command has to start the nREPL CLI. You might want to check out:

(defun cider-clojure-cli-jack-in-dependencies (params dependencies &optional command)
  "Create Clojure tools.deps jack-in dependencies.
Does so by concatenating DEPENDENCIES and PARAMS into a suitable `clojure`
invocation and quoting, also accounting for COMMAND if provided.  The main
is placed in an inline alias :cider/nrepl so that if your aliases contain
any mains, the cider/nrepl one will be the one used."
  (let* ((all-deps (thread-last dependencies
                                (append (cider--jack-in-required-dependencies))
                                ;; Duplicates are never OK since they would result in
                                ;; `java.lang.IllegalArgumentException: Duplicate key [...]`:
                                (cider--dedupe-deps)
                                (seq-map (lambda (dep)
                                           (if (listp (cadr dep))
                                               (format "%s {%s}"
                                                       (car dep)
                                                       (seq-reduce
                                                        (lambda (acc v)
                                                          (concat acc (format " :%s \"%s\" " (car v) (cdr v))))
                                                        (cadr dep)
                                                        ""))
                                             (format "%s {:mvn/version \"%s\"}" (car dep) (cadr dep)))))))
         (middleware (mapconcat
                      (apply-partially #'format "%s")
                      (cider-jack-in-normalized-nrepl-middlewares)
                      ","))
         (main-opts (format "\"-m\" \"nrepl.cmdline\" \"--middleware\" \"[%s]\"" middleware))
         (deps (format "{:deps {%s} :aliases {:cider/nrepl {%s:main-opts [%s]}}}"
                       (string-join all-deps " ")
                       (if cider-enable-nrepl-jvmti-agent
                           ":jvm-opts [\"-Djdk.attach.allowAttachSelf\"], "
                         "")
                       main-opts))
         (deps-quoted (cider--shell-quote-argument deps command)))
    (format "-Sdeps %s -M%s:cider/nrepl%s"
            deps-quoted
            (cider--combined-aliases)
            (if params (format " %s" params) ""))))

Probably we'll need to restructure it for someone to be able to do what you're interested in doing.