Conrad Connect - Service for managing smart home devices
Tuya Smart - Tuya Smart is a free to use Lifestyle Application by Tuya Inc.
FHEM - FHEM (TM) is a GPL'd perl server for house automation.
Swann Security - Swann Security is a fully integrated app for monitoring and controlling every aspect of Swann security cameras and surveillance systems.
Homebridge.io - Homebridge is a lightweight NodeJS server you can run on your network that emulates the iOS HomeKit...
EseeCloud - EseeCloud is a powerful mobile video surveillance app that lets you keep an eye on your property from anywhere in the world.