Coountdown - 3 2 1 ! Create day counter on menu bar macOS. 🚀
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Timetaco - Create your own countdowns, as easy as 3, 2, 1
ioBroker - flexible and modular application for the IoT and Smarthome
Padbury Clock Screensaver - Minimal screensaver for Mac
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation