LittleKernel or LK is an embedded kernel designed for small systems. page

Prior Google-developed operating systems such as Chrome OS and Android, are based on Linux kernels, Fuchsia is based on a new microkernel called "Zircon", derived from "Little Kernel".

Gary Sims at Android Authority built Fuchsia from source page

The OS project Fuchsia is a capability-based, real-time operating system (RTOS) currently being developed by Google page


To grok Zircon sits see Treble

Google's "Project Treble" will modularize Android to make updates faster page