eero - Blanket your home in fast, reliable WiFi
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
MIWIFI by Xiaomi - Wifi router beta with a twist: you build it yourself
ioBroker - flexible and modular application for the IoT and Smarthome
Plume - App for writing documents, scripts, books and more.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation