Try setting cider-clojure-cli-aliases to ":dev/reload" Delete the code that touches cider-clojure-cli-global-options , I think it's a confusing defcustom, it got deprecated and then introduced again

Do I need to explicitly add

io.github.tonsky/clj-reload {:mvn/version "0.7.1"}

Yes you do need it Try the simplest thing first (adding it to the project's deps.edn), if it works, then experiment with a global setup

How can I tell emacs to reload my project definition after I change something in deps.edn?

For example, after adding a dependency?

M-x sesman-restart performs jack-in again in a given project I don't use it a lot but I think it works correctly! (clojure 1.12 has a new feature for deps reloading, for now I'd stick to what we know that works)

I wrote some elisp code that works. Pasting here just in case someone else find it useful.

(require 'projectile)
(require 'parseedn)

(defun get-project-root ()
  "Get the root directory of the current project."
  (if (projectile-project-p)
      (projectile-project-root)
    default-directory))

(defun extract-ns-default (deps-file)
  "Extract the ns-default from the :run-x alias in deps.edn."
  (with-temp-buffer
    (insert-file-contents deps-file)
    (goto-char (point-min))
    (let* ((deps-data (parseedn-read-str (buffer-string)))
           (aliases (gethash :aliases deps-data))
           (run-x (gethash :run-x aliases)))
      (gethash :ns-default run-x))))

(defun set-cider-repl-init-code ()
  (let ((ns (extract-ns-default (concat (get-project-root) "deps.edn"))))
    (if ns
        (list (format "(in-ns '%s)" ns))
      (list))))  ;; return an empty string if no namespace is found

;; Hook into CIDER's jack-in hook to set the init code dynamically
(with-eval-after-load 'cider
  (setq cider-repl-init-code (set-cider-repl-init-code)))

{:paths ["src" "resources"]
 :deps {org.clojure/clojure {:mvn/version "1.11.3"}
        io.github.tonsky/clj-reload {:mvn/version "0.7.1"}}
 :aliases
 {:run-m {:main-opts ["-m" "oscarvarto.hello-world"]}
  :run-x {:ns-default oscarvarto.hello-world
          :exec-fn greet
          :exec-args {:name "Clojure"}}
  :build {:deps {io.github.clojure/tools.build
                 {:mvn/version "0.10.3"}}
          :ns-default build}
  :test {:extra-paths ["test"]
         :extra-deps {org.clojure/test.check {:mvn/version "1.1.1"}
                      io.github.cognitect-labs/test-runner
                      {:git/tag "v0.5.1" :git/sha "dfb30dd"}}}}}

Thanks vemv

I wrote the code going backwards. Checked that the final

(with-eval-after-load 'cider
  (setq cider-repl-init-code (set-cider-repl-init-code)))

Nice to hear, great work!

I think this exercise helped me a lot. Hopefully I got a little bit more of understanding of what interactive development means.

Yes Emacs is a prime example of interactive development, and also of creating self-documenting systems Suerte con todo compadre

What does "not working" mean? Try putting dummy code like (spit "a" "a") , does it get run?

Anyone else running into problems with cider's docstring stuff breaking completions in emacs? Not sure if this is a bug or not. Ran into this using corfu with docs always displayed in corfu-popupinfo, but the problem was reproducible with : 1. emacs -Q 2. M-x package-install cider 3. I opened a clojure file, did cider-connect-clj to a running repl 4. M-x toggle-debug-on-error 5. run complete-symbol with M-tab on a completion that includes a namespace or otherwise doesn't have its own docstring. Specifically I typed '(h' and hit M-tab` a couple times Backtrace

Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
  replace-regexp-in-string("\n  " "\n" nil)
  cider-docstring--format(nil)
  cider-eldoc-format-variable("ha" ("ns" nil "class" nil "symbol" ".nil" "arglists" nil "docstring" nil "doc-fragments" nil "doc-first-sentence-fragments" nil "doc-block-tags-fragments" nil "type" "variable"))
  cider-eldoc(#f(compiled-function (string &rest plist) #))
  eldoc-documentation-default()
  eldoc--invoke-strategy(nil)
  eldoc-print-current-symbol-info()
  #()
  apply(# nil)
  timer-event-handler([t 0 0 500000 nil # nil idle 0 nil])

There was nil fix for cider-docstring--format . Are you on cider master / latest unstable?

master, repl reads CIDER 1.15.1 (Cogne). Tried an older version too and got the same result.

Please create an issue and we'll attend it asap

(indicate exact version for master, e.g. git sha)

Thanks, will do