general experience, ideas, and thank you about ednc HOT 1 CLOSED

Thanks for your feedback! Judging by the GitHub stats, the mention by Sacha Chua is responsible for most of the recent interest in this package. Since you mentioned EXWM, I think of most of its users as potential users of EDNC as well, but they are hard to reach without spamming the project at places specific to EXWM. Seems I have to rely on word of mouth here.

Since I use exwm and as per my experiments it does not seem frames stack in exwm (though I could be wrong, I'll ask about this), I tried postframe.

This appears not to be possible in EXWM, unfortunately. One can get pretty close to what I think you want without using external packages. With the following function, an appropriately sized window should almost always appear at the bottom (though not at the bottom right) of the frame, and disappear once the notification is closed:

(defun show-notification-in-buffer (old new)
  (let ((name (format "Notification %d" (ednc-notification-id (or old new)))))
    (with-current-buffer (get-buffer-create name)
      (if new (let ((inhibit-read-only t))
                (if old (erase-buffer) (ednc-view-mode))
                (save-excursion (insert (ednc-format-notification new t)))
                (pop-to-buffer (current-buffer)
                               (cons #'display-buffer-at-bottom
                                     '((window-height . fit-window-to-buffer)
                                       (dedicated . t)))))
        (kill-buffer)))))

I deliberately kept the functions in the README as minimal as possible, though, to encourage users to build their personal solution on top of EDNC, as that will be superior to anything I could possibly come up with. Nothing wrong with relying on external packages like posframe either!

I want to propose to add a simple example on how to actually see a notification happening.

Done. Unfortunately the notifications library makes it a little too easy to create notifications that are in violation of the standard (e.g., by missing a default action).

from ednc.