I know it's an old topic but am trying out Home Assistant and alarm / lighting integration.
I have a Texecom panel which I installed myself with wired detectors. I recently upgraded from a Premier to a Premier elite panel to take advantage of Home Assistant automation. The Texecom2mqtt worked first time via the Texecom Com IP. Auto-discovery picked up all the alarm areas and sensors/detectors. I am now using Node-red within Home Assistant to run some basic integrations off the door/window sensors and PIRs. So far it works.