AutoCAD Doesn't work in Chrome OS.Unknown if it ever will.
https://www.howtogeek.com/278953/how-to-install-windows-on-a-chromebook/
check out bricscad for max os compatibility, and I don't mean a dumbed down version like what acad for mac is.
internal protected virtual unsafe Human() : mostlyHarmless
I'm just here for the Shelties