That is very nice! 👏
..I tried searching, and came out with something different!
Read this as I was falling asleep last night...
I do recall the mantra in aerospace - check and double-check switch settings per the operations directive - as a part of test setups.
It got to a point you could simply glance at a test system, looking at the switch settings and know things were correct.
My, how far we've come.