Clojurians Log v2

I've also struggled with this and gave up (but mostly because my macro knowledge was terrible, I didn't run into the same issue)

I took you having this problem as well as a challenge and tried again, try this please:

(defmacro defco [sym args & body]
  `(rum.core/defc
     ~sym
     ~'< ALL_YOUR_MIXINS
     ~args
     ~@body))

^ @michihuber

I've also arrived myself at this version, which you can probably adjust to your liking:

(defn insert
  "Inserts an element into a collection at the given index"
  [coll idx elem]
  (concat
    (take idx coll)
    [elem]
    (drop idx coll)))

(defmacro def-styled
  "rum/defc but automatically adds the reactive mixin"
  [sym & args]
  (let [docstring (when (= (second args) '<)
                    (first args))
        filtered-args (if (= (first args) '<)
                        (rest args)
                        (if docstring
                          (nthrest args 2)
                          args))
        definition `(rum/defc
                      ~sym
                      ~'< reactive
                      ~@filtered-args)]
    (if docstring
      (insert definition 2 docstring)
      definition)))

awesome, thank you, @azzurite