On Thu, Aug 4, 2022 at 7:01 AM <karl@???> wrote:

> Do you have some pointers to thoose experimental operating systems
> so I can get a taste of what you are talking about ?


This goes way back. Mach did lightweight messaging and more (and survives
in MacOS, I think), Plan 9 did the graphics API == window system API. I
haven't followed more modern experimental operating systems. Mostly
you don't hear as much about them these days, I think a lot of researchers
use an existing Open Source OS as a base for some specific facility.

    Thanks

    Bruce