Google's Fuchsia operating system: Dart is its heart programming language!

https://www.engadget.com/2016/08/13/google-fuchsia-operating-system/

Google is no stranger to creating whole platforms when it needs them, but its latest project might be something special. It's working on Fuchsia, an open source operating system that's designed to scale all the way from Internet of Things devices through to phones and even PCs. Its kernel includes 'grown up' OS features like user modes and a capability-based security model, Android Police notes, and it supports both advanced graphics as well ARM and 64-bit Intel-based PCs. To no one' surprise, it's using Google's own Dart programming language at its heart.