* *CHIME Heralds Imminent Events*

Customizable org notifications for Emacs with visual alerts, audible chimes, and modeline display.

** About

CHIME (backronym: *CHIME Heralds Imminent Events*) provides notification support for your org-agenda events. Get visual notifications, a pleasant chime sound, and see your next upcoming event in your modeline.

This is an updated and maintained fork of the abandoned [[https://github.com/akhramov/org-wild-notifier.el][org-wild-notifier]] project, renamed to CHIME with bug-fixes and new features.

Note: while I've found this package to be quite reliable, it's still undergoing feature development and will be changing frequently. 

** Features

- *Visual notifications* with customizable alert times
- *Audible chime sound* when notifications are displayed. 
- *Modeline display* of next upcoming event with customizable lookahead
- Multiple notification times per event (e.g., 5 minutes before and at event time)
- Works with SCHEDULED and DEADLINE and plain timestamps
- Supports repeating timestamps (=+1w=, =.+1d=, =++1w=)
- Per-event notification customization via properties
- Async background checking (runs every minute)
- Configurable notification filtering by keywords and tags
- [[tests/testing-strategy.org][Well-tested]], including with org-gcal

** Installation

This package is NOT YET available on MELPA.

*** package-vc-install (Emacs 29+)

#+BEGIN_SRC elisp
(unless (package-installed-p 'chime)
  (package-vc-install "https://github.com/cjennings/chime.el"))
#+END_SRC

*** use-package with :vc (Emacs 29+)

#+BEGIN_SRC elisp
(use-package chime
  :vc (:url "https://github.com/cjennings/chime.el" :rev :newest)
  :after (alert org-agenda)
  :commands (chime-mode chime-check)
  :bind ("C-c A" . chime-check)
  :config
  ;; Notification times: 5 minutes before and at event time
  (setq chime-alert-time '(5 0))

  ;; Chime sound
  (setq chime-play-sound t)

  ;; Modeline display
  (setq chime-modeline-lookahead 30)
  (setq chime-modeline-format " ⏰ %s")

  ;; Notification settings
  (setq chime-notification-title "Reminder")
  (setq chime-alert-severity 'medium)

  ;; Don't filter by TODO keywords - notify for all events
  (setq chime-keyword-whitelist nil)
  (setq chime-keyword-blacklist nil)

  ;; Only notify for non-done items
  (setq chime-predicate-blacklist
        '(chime-done-keywords-predicate))

  ;; Enable chime-mode automatically
  (chime-mode 1))
#+END_SRC

*** Manual Installation (Recommended for Development)

#+BEGIN_SRC elisp
;; Add to load-path
(add-to-list 'load-path "~/path/to/chime.el")

;; Load and configure
(require 'chime)
#+END_SRC

** Quick Start

Minimal configuration:

clone the package somewhere, then add 

#+BEGIN_SRC elisp
  (add-to-list 'load-path  "/path/to/chime.el/")
  (require 'chime)

  ;; Notify 5 minutes before and at event time
  (setq chime-alert-time '(5 0))

  ;; Enable notifications
  (chime-mode 1)
#+END_SRC

** Configuration

*** Alert Times

Set when to receive notifications (in minutes before event):

#+BEGIN_SRC elisp
;; Single notification 10 minutes before
(setq chime-alert-time 10)

;; Multiple notifications: 10 min, 5 min, and at event time
(setq chime-alert-time '(10 5 0))
#+END_SRC

*** Chime Sound

Control the audible chime that plays when notifications appear:

#+BEGIN_SRC elisp
;; Enable/disable chime sound (default: t)
(setq chime-play-sound t)

;; Use custom sound file (defaults to bundled chime.wav)
(setq chime-sound-file "/path/to/your/chime.wav")

;; Disable sound, use system beep instead
(setq chime-sound-file nil)
#+END_SRC

The package includes a pleasant chime sound in GPL-compatible WAV format. You can use your own sound file if preferred.

*** Modeline Display

Show the next upcoming event in your modeline:

#+BEGIN_SRC elisp
;; Show events up to 30 minutes ahead (default)
(setq chime-modeline-lookahead 30)

;; Customize the display format (default: " ⏰ %s")
(setq chime-modeline-format " [Next: %s]")

;; Disable modeline display
(setq chime-modeline-lookahead 0)
#+END_SRC

The modeline will display the soonest event within the lookahead window, formatted as:
- Default: =⏰ Meeting with Team at 02:30 PM (in 15 minutes)=
- Updates automatically every minute

*** Notification Settings

#+BEGIN_SRC elisp
;; Notification title
(setq chime-notification-title "Reminder")

;; Notification severity (low, medium, high)
(setq chime-alert-severity 'medium)
#+END_SRC

*** Filtering

#+BEGIN_SRC elisp
;; Only notify for specific TODO keywords
(setq chime-keyword-whitelist '("TODO" "NEXT"))

;; Never notify for these keywords
(setq chime-keyword-blacklist '("DONE" "CANCELLED"))

;; Only notify for specific tags
(setq chime-tags-whitelist '("@important"))

;; Never notify for these tags
(setq chime-tags-blacklist '("someday"))
#+END_SRC

** Usage

*** Basic Event with Timestamp

#+BEGIN_SRC org
,* Meeting with Team
<2025-10-25 Sat 14:00>
#+END_SRC

Will notify at 14:00 (if =chime-alert-time= includes =0=).

*** Events with SCHEDULED or DEADLINE

#+BEGIN_SRC org
,* TODO Call Doctor
SCHEDULED: <2025-10-25 Sat 10:00>
#+END_SRC

*** Repeating Events

Repeating timestamps are fully supported:

#+BEGIN_SRC org
,* TODO Weekly Team Meeting
SCHEDULED: <2025-10-25 Sat 14:00 +1w>

,* TODO Daily Standup
SCHEDULED: <2025-10-25 Sat 09:00 +1d>

,* TODO Review Email
SCHEDULED: <2025-10-25 Sat 08:00 .+1d>
#+END_SRC

Supported repeaters:
- =+1w= - Repeat weekly from original date
- =.+1d= - Repeat daily from completion
- =++1w= - Repeat weekly from scheduled date

*** Per-Event Notification Times

Override global notification times for specific events:

#+BEGIN_SRC org
,* IMPORTANT Board Meeting
SCHEDULED: <2025-10-25 Sat 14:00>
:PROPERTIES:
:CHIME_NOTIFY_BEFORE: 30 15 5 0
:END:
#+END_SRC

This event will notify at: 30min, 15min, 5min before, and at event time.

** Known Limitations

*** Sexp Diary Entries Not Supported

This format is *not supported*:

#+BEGIN_SRC org
,* TODO Daily Standup
SCHEDULED: <%%(memq (calendar-day-of-week date) '(1 2 3 4 5))>
#+END_SRC

*Workaround:* Use standard repeating timestamps instead:

#+BEGIN_SRC org
,* TODO Daily Standup
SCHEDULED: <2025-10-24 Fri 09:00 +1d>
#+END_SRC

For Monday-Friday events, you can either:
1. Accept weekend notifications (mark as DONE on weekends)
2. Create 5 separate entries, one for each weekday with =+1w= repeater

** Full Example Configuration

#+BEGIN_SRC elisp
  (use-package chime
    :vc (:url "https://github.com/cjennings/chime.el" :rev :newest)
    :after (alert org-agenda)
    :commands (chime-mode chime-check)
    :config
    ;; Notification times: 5 minutes before and at event time
    (setq chime-alert-time '(5 0))

    ;; Chime sound
    (setq chime-play-sound t)
    ;; Uses bundled chime.wav by default

    ;; Modeline display
    (setq chime-modeline-lookahead 120)   ;; notify for events 2 hrs ahead
    (setq chime-modeline-format " ⏰ %s") 

    ;; Notification settings
    (setq chime-notification-title "Reminder")
    (setq chime-alert-severity 'medium)

    ;; Don't filter by TODO keywords - notify for all events
    (setq chime-keyword-whitelist nil)
    (setq chime-keyword-blacklist nil)

    ;; Only notify for non-done items
    (setq chime-predicate-blacklist
          '(chime-done-keywords-predicate))

    ;; Enable chime-mode automatically
    (chime-mode 1))
#+END_SRC

** Manual Check

You can manually trigger a notification check:

#+BEGIN_SRC elisp
M-x chime-check
#+END_SRC

** Troubleshooting

*** No notifications appearing

1. Verify chime-mode is enabled: =M-: chime-mode=
2. Check that alert is configured correctly:
   #+BEGIN_SRC elisp
   (setq alert-default-style 'libnotify)  ; or 'notifications on some systems
   #+END_SRC
3. Manually test: =M-x chime-check=
4. Check =*Messages*= buffer for error messages

*** No sound playing

1. Verify sound is enabled: =M-: chime-play-sound= should return =t=
2. Check sound file exists: =M-: (file-exists-p chime-sound-file)=
3. Test sound directly: =M-: (play-sound-file chime-sound-file)=
4. Ensure your system has audio support configured

*** Events not being detected

1. Ensure files are in =org-agenda-files=
2. Verify timestamps have time components: =<2025-10-25 Sat 14:00>= not =<2025-10-25 Sat>=
3. Check filtering settings (keyword/tag whitelist/blacklist)

** Requirements

- Emacs 26.1+
- Org-mode 9.0+
- =alert= package
- =dash= package
- =async= package

** License

GPL-3.0

** Credits

All credit and thanks should go to Artem Khramov for his work on [[https://github.com/akhramov/org-wild-notifier.el][org-wild-notifier]]. Early in 2025, I needed an event notifier in Emacs and found this package. Sadly, the author deprecated org-wild-notifier on Aug 2, 2025 in favor of [[https://github.com/spegoraro/org-alert][org-alert]]. I began fixing bugs and enhancing the feature set into what I needed, then decided it had become different enough to name it CHIME. I plan to maintain this in appreciation and gratitude of Artem's work, and for the larger Emacs community. 

** Migration from Org-Wild-Notifier

If you're migrating from org-wild-notifier, you'll need to update your configuration:

1. Change package name:
   - =(require 'org-wild-notifier)= → =(require 'chime)=

2. Update all configured variable names:
   - =org-wild-notifier-*= → =chime-*=

3. Update configured function names:
   - =org-wild-notifier-mode= → =chime-mode=
   - =org-wild-notifier-check= → =chime-check=

4. Update property names in your org files:
   - =:WILD_NOTIFIER_NOTIFY_BEFORE:= → =:CHIME_NOTIFY_BEFORE:=