ioBroker - flexible and modular application for the IoT and Smarthome
Home - Securely control all your HomeKit accessories from your favorite iOS device.
Domoticz - Domoticz is a lightweight Home Automation System
Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.
Nim Home Assistant (NimHA) - Nim Home Assistant is an open-source home automation platform running on Nim.
My Devices - Drag and drop IoT project builder for Raspberry Pi