I don’t think this is implemented in the standard datetime library, but in principle overriding sub is easily possible and you can define it as you’d wish.

However, I think subtracting a year is a bit ill defined, because it isn’t clear which year you’re subtracting given the leap year issue.

one could certainly implement something like that in python, something like time.now - 10 * time.unit.year

Yeah kind of, but you need to have an actual machine running windows somewhere (preferably within the same network)

A VM would be more like “a window running windows”

There are drive thrus for ATMs?

I don’t know what you’re trying to do but the easiest thing would be a bash script you would run after installation which does everything you want to change if it’s just some setting and packages