* Emacs Open Work
** TODO [#A] Emacs should open specific file extensions outside emacs
*** Reference Ideas
**** https://www.reddit.com/r/emacs/comments/1cdhum7/how_to_make_emacs_open_certain_files_using/
(defun my/dired-open()
  (interactive)
  (let ((filext '("mp4" "rar" "zip" "gz" "epub" "xz" "sig" "pdf" "jpg" "png" "7z")))
    (cond
     ((file-directory-p (dired-get-file-for-visit))
      (dired-find-file))

     ((member (f-ext (dired-get-file-for-visit)) filext)
      (call-process "xdg-open" nil nil nil (dired-get-file-for-visit)))

     (t (dired-find-file)))))
**** https://www.reddit.com/r/emacs/comments/1cdhum7/how_to_make_emacs_open_certain_files_using/
(defun xdg-open (&optional filename)
  (interactive)
  (let ((process-connection-type))
    (start-process
     "" nil (cond ((eq system-type 'gnu/linux) "xdg-open")
                  ((eq system-type 'darwin) "open")
                  ((eq system-type 'windows-nt) "start")
                  (t "")) (expand-file-name
                  (or filename (dired-file-name-at-point))))))

(defun find-file-auto (orig-fun &rest args)
  (let ((filename (car args)))
    (if (cl-find-if
         (lambda (regexp) (string-match regexp filename))
         '("\\.pdf\\'" "\\.mp4\\'" "\\.wav\\'" "\\.avi\\'" "\\.gif\\'" "\\.docx?\\'"))
        (xdg-open filename)
      (apply orig-fun args))))

(advice-add 'find-file :around 'find-file-auto)
**** https://pastebin.com/HShdkFrY
;; Dired "native open": Use the OS-native program for opening the file
;; type from Dired

(defvar dired-native-open-program nil "The OS-native program for opening files.")

(cond ((eq system-type 'darwin)
       (setq dired-native-open-program "/usr/bin/open"))
      ((eq system-type 'gnu/linux)
       (setq dired-native-open-program "xdg-open"))
      ((eq system-type 'windows-nt)
       (setq dired-native-open-program "explorer.exe")))

(defun dired-open-with-native-open-program ()
  "Open the marked files with the program associated with those file types."
  (interactive)
  (let ((file-list (dired-get-marked-files)))
    (dired-run-shell-command
     (dired-shell-stuff-it dired-native-open-program file-list t))))

(define-key dired-mode-map (kbd "M-o") #'dired-open-with-native-open-program)
(define-key locate-mode-map (kbd "M-o") #'dired-open-with-native-open-program)

** TODO [#B] Mu4e Working with Proton and Gmail
** TODO [#B] Dirvish should open not showing hidden files by default
*** 2025-06-07 Sat @ 12:25:28 -0500 It isn't omitting the h switch on directory listings
No. Didn't help
** TODO [#B] Fix Emacs Alarm for Scheduled Events
*** 2025-06-03 Tue @ 15:12:51 -0500 Problem
Emacs Alarm seems to sound off periodically after the
** TODO [#B] Add Past Due to F8 Agenda Summary in Emacs
** TODO [#B] Separate B and C in F8 Agenda Summary in Emacs
** TODO [#B] Adjust Eshell Colors
the prompt is pink?
** TODO [#B] Fix Emacs Org Roam Recipe Error
C-c n i then type a recipe name.
org-element--get-category: Invalid function: org-element-with-disabled-cache
The file was created, but does not come to the front
The category value seems unaligned
** TODO [#B] Emacs Eshell Doesn't Inherit Environment Variables
** TODO [#C] Rename 'sync-dir' Variable in Init File to 'org-dir'
** TODO Install ZOxide Integration into Emacs
[[https://gitlab.com/Vonfry/zoxide.el][Vonfry / zoxide.el · GitLab]]
Captured On: [2025-06-07 Sat 17:11]
** TODO [#C] Emacs Signal Client
*** TODO investigate: net/signel.org · master · undefined · GitLab
[[https://gitlab.com/jaor/elibs/-/blob/master/net/signel.org][net/signel.org · master · undefined · GitLab]]
Captured On: [2025-05-29 Thu 04:24]
*** TODO investigate: signel, a barebones signal chat on top of signal-cli
[[https://jao.io/blog/signel.html][signel, a barebones signal chat on top of signal-cli]]
Captured On: [2025-05-29 Thu 04:23]

** TODO Test This Method for Alarms In Emacs
#+BEGIN_QUOTE


I am quite happy with the system I use, which does (I think) exactly what you want. It has two parts: an Emacs part that uses appt.el to schedule the reminders and a small shell program (I'm using Linux) that creates the popup + sound notification. Here I share the code for both parts.

A) Code in ~/.emacs.d/init.el

(require 'appt)
(appt-activate t)

(setq appt-message-warning-time 5) ; Show notification 5 minutes before event
(setq appt-display-interval appt-message-warning-time) ; Disable multiple reminders
(setq appt-display-mode-line nil)

; Use appointment data from org-mode
(defun my-org-agenda-to-appt ()
  (interactive)
  (setq appt-time-msg-list nil)
  (org-agenda-to-appt))

; Update alarms when...
; (1) ... Starting Emacs
(my-org-agenda-to-appt)

; (2) ... Everyday at 12:05am (useful in case you keep Emacs always on)
(run-at-time "12:05am" (* 24 3600) 'my-org-agenda-to-appt)

; (3) ... When TODO.txt is saved
(add-hook 'after-save-hook
          '(lambda ()
             (if (string= (buffer-file-name) (concat (getenv "HOME") "/ideas/TODO.txt"))
                 (my-org-agenda-to-appt))))

; Display appointments as a window manager notification
(setq appt-disp-window-function 'my-appt-display)
(setq appt-delete-window-function (lambda () t))

(setq my-appt-notification-app (concat (getenv "HOME") "/bin/appt-notification"))

(defun my-appt-display (min-to-app new-time msg)
  (if (atom min-to-app)
    (start-process "my-appt-notification-app" nil my-appt-notification-app min-to-app msg)
  (dolist (i (number-sequence 0 (1- (length min-to-app))))
    (start-process "my-appt-notification-app" nil my-appt-notification-app (nth i min-to-app) (nth i msg)))))

B) Code in ~/bin/appt-notification

#!/bin/sh

TIME="$1"
MSG="$2"

notify-send -t 0 "<br>Appointment in $TIME minutes:<br>$MSG<br>"
play "~/bin/alarm.wav"

To get voice notifications you could replace the last line (play) with the following:

espeak "Appointment in $TIME minutes: $MSG"
#+END_QUOTE
[[https://emacs.stackexchange.com/questions/3844/good-methods-for-setting-up-alarms-audio-visual-triggered-by-org-mode-events][Good methods for setting up alarms (audio + visual) triggered by org-mode events? - Emacs Stack Exchange]]
Captured On: [2025-06-19 Thu 12:29]
** TODO [#C] Emacs: Should adding tasks add it to Projects and Tasks in the inbox file?
* Emacs Project Ideas/References
** emacs-tw/awesome-elisp: 🏵️ A curated list of Emacs Lisp development resources
[[https://github.com/emacs-tw/awesome-elisp][emacs-tw/awesome-elisp: 🏵️ A curated list of Emacs Lisp development resources]]
Captured On: [2025-06-07 Sat 13:42]
** emacs-tw/awesome-emacs: A community driven list of useful Emacs packages, libraries and other items.
[[https://github.com/emacs-tw/awesome-emacs#layout][emacs-tw/awesome-emacs: A community driven list of useful Emacs packages, libraries and other items.]]
Captured On: [2025-06-07 Sat 13:30]
** ryuslash/mode-icons: Show icons instead of mode names
[[https://github.com/ryuslash/mode-icons][ryuslash/mode-icons: Show icons instead of mode names]]
Captured On: [2025-06-07 Sat 13:29]
** manateelazycat/awesome-tray: Hide mode-line, display necessary information at right of minibuffer.
[[https://github.com/manateelazycat/awesome-tray][manateelazycat/awesome-tray: Hide mode-line, display necessary information at right of minibuffer.]]
Captured On: [2025-06-07 Sat 13:29]
** bastibe/org-static-blog: A static site generator using org-mode
[[https://github.com/bastibe/org-static-blog][bastibe/org-static-blog: A static site generator using org-mode]]
Captured On: [2025-05-29 Thu 04:32]
** an emacs packages hat trick
[[https://jao.io/blog/emacs-packages-hat-trick.html][an emacs packages hat trick]]
Captured On: [2025-05-29 Thu 04:28]
** a high signal to noise emacs command: buffer-same-mode
[[https://jao.io/blog/high-signal-to-noise-emacs-command.html][a high signal to noise emacs command]]
Captured On: [2025-05-29 Thu 04:33]