I’ve released a Docker image which integrates with Texecom and MQTT including remote arming/part arming/disarming as well as full zone updates: https://hub.docker.com/r/dchesterton/texecom2mqtt . It has Home Assistant auto-discovery built-in too.
Texecom won’t allow me to publish the source code unfortunately. I’ve signed an NDA so the GitHub repo is private therefore if you have any feedback, questions or issues, please post on here and I’ll try to help. I have a Elite 24 panel and ComIP but it should work with other Premier Elite panels and the SmartCom.