TradingView - The best charting tool for crypto and stocks
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
eToro - The social investment network that connects traders from around the globe and enables them to share...
ioBroker - flexible and modular application for the IoT and Smarthome
Robinhood - Free stock trading service.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation