Recently, WS was replaced with WS2:
window-service: removes mus_demo, test_wm, and some unnecessary deps Issue 865689 Remove window-service I’ve run mus_demo to test ozone-gbm, but now it’s gone. :-( So, I need to figure it out what is the difference between WS1 and WS2.
What is the Window Service of ChromeOS? Window Service is a kind of Window Compositor like Weston. It is a separate process from the browser process in CrOS.
Recently, ChromeOS started to support Linux applications on ChomeOS. Google hasn’t allowed ChromeOS to run native applications due to security reason. Finally, they found a way to support Linux application through the container technology.
It is worth to read a discussion on CrOSVM on Hacker News because the original author joined the discussion. Here is the article about ChromeOS Linux container. https://www.zdnet.com/article/chrome-os-could-be-getting-containers-for-running-linux-vms/
There is a Youtube video: https://www.youtube.com/watch?v=s9mrR2tqVbQ
Here is the readme about CrOSVM: