The NightShift project acts as a server for fire and security alarm devices (PPKOP) Astra Dozor. The server implements such functions as logging and parsing messages from the device, as well as sending control commands to the device (arming and disarming, enabling and disabling zones, relays, rebooting the device). The code is written in C language and distributed under the GPLv3 license.
The new version implements basic support for the MQTT protocol, with sending system events to topics, the system is also controlled via the MQTT protocol.
Source: linux.org.ru