Notifications¶

A notification that appears on one device appears on the others, with the app's name and icon and the device it came from, and dismissing it anywhere clears it everywhere the platform allows. Each platform differs in what it can see of its own notifications:

Device	Shows the others' notifications	Sends its own
Linux	Yes, through the desktop's notification service	Yes, by watching the session bus
macOS	Yes, without icons	No: macOS lets no third party read them
Android	Yes	Yes, once you grant notification access

Linux¶

Nothing to set up. The daemon displays what your other devices post through whatever notification daemon your desktop runs, and sees every notification your own applications post by monitoring the session bus, so a message that pops up on the desktop reaches the phone and the Mac. Closing a copy on another device closes the original here, and closing the original closes the copies.

macOS¶

The Mac displays only. Its notifications are posted through AppleScript, which means:

they carry no icon and cannot be updated or closed from outside, so a dismissal made on another device does not clear them;
they post as Script Editor, and show only after you have allowed Script Editor to post once (see Install);
a Focus mode hides them like any other.

Nothing an application posts on the Mac leaves it, because macOS gives no process a view of other applications' notifications.

Android¶

Tap Notification access on the app's screen and enable Ligature in Settings. Until you do, the phone displays your other devices' notifications but sends none of its own; the screen says "displaying only (no notification access)".
Apps appear in the Notifications card as they post, each with a switch. Turn an app off to keep its notifications on the phone; the others still go out. The switch is remembered.
Ongoing, silent and summary notifications stay on the phone, as do Ligature's own.

Your other devices' notifications arrive grouped by the device they came from, with the app and device named beneath. Swiping one away dismisses it on the device that posted it and on your other devices.

Trying it¶

From a desktop:

lpctl notify "Hello" "from the desk"

posts a notification from this device to every device that displays them, as an application would.

Privacy¶

Notifications travel only between your own devices, over the encrypted session each pair of them holds, and are never stored by the daemon: a copy exists while the original does. Icons travel once per session and are checked against their hash on arrival.