If you call this a "dead man's switch" I'd expect it to turn my app off when I die. E.g. "switch" something when something happens to a "man".
Your own README links to this definition: "A dead man's switch is a switch that is designed to be activated or deactivated if the human operator becomes incapacitated".
This is a watchdog timer / monitor / heartbeat, setting off an alert if a timer elapses.
Your own README links to this definition: "A dead man's switch is a switch that is designed to be activated or deactivated if the human operator becomes incapacitated".
This is a watchdog timer / monitor / heartbeat, setting off an alert if a timer elapses.