Maybe something very similar, [1] https://en.wikipedia.org/wiki/Amdahl_UTS https://en.wikipedia.org/wiki/Amdahl_UTS [2] https://github.com/moshix/UTS https://

Maybe something very similar, [1] https://en.wikipedia.org/wiki/Amdahl_UTS https://en.wikipedia.org/wiki/Amdahl_UTS [2] https://github.com/moshix/UTS https://github.com/moshix/UTS which runs under [3] http://vm370.org/ http://vm370.org/ as shown in these two videos: [4] https://www.youtube.com/watch?v=k56qLxG-sUM https://www.youtube.com/watch?v=k56qLxG-sUM [5] https://www.youtube.com/watch?v=iFUHwkbVTJg https://www.youtube.com/watch?v=iFUHwkbVTJg I didn't try it by myself, so far. Though I'm very tempted. Maybe this could work for you, or rather your father.