Lacros is an architecture project to decouple the Chrome browser from the Chrome OS window manager and system UI. The name comes from Linux And ChRome OS.
A fast and lightweight Linux distro for ChromeOS devices.
NayuOS is an ongoing project at Nexedi: since we mainly use Chromebooks as part of our development tools, we want to have more customizable, secure and privacy-compliant devices. We also love Free Software so we do want a Free alternative for Chrome OS that fits our needs.