Comment by r3c0nc1l3r

No systemd, these just start a shell script on init that launches the WM. They're based around the open-source component of this product: https://www.kasmweb.com/docs/latest/index.html

I find that they are slightly more sluggish than Moonlight/Sunshine for remote streaming, but generally faster/better than x11vnc. Not quite good enough for gaming yet, but plenty for web browsing, Blender, etc.