A daemon that monitors network traffic for DHCP and ARP packets from known devices and sends a notification using Telegram when these devices connect or disconnect.
yay -S houseratcargo install houserat (note that you'll have to manually install the service and
config files)/etc/houserat/config.toml (example config).systemctl enable --now houserat.Houserat detects devices connecting to the network when they send a DHCP request packet. It will then notify that device's subscriber and start polling this device to detect when it goes away. Since phones don't always respond to PING packets houserat uses ARP requests which all devices must respond to.
When several ARP requests go unanswered the device is considered disconnected and a notification is sent to the subscriber.
Houserat has several features designed to reduce notification spam: * Configurable cooldown during which no new notifications are sent, for example if a device reconnects soon after its initial connection only 1 notification is sent. * Configurable quiet period during which messages are sent without sound notifications. This can be used to avoid having noisy Telegram notifications at night.