“Yousa tinking yousa people ganna die? Yousa pissa shit.”

“dormammu, I’ve come to bargain. you piece of shit”

in theory, I think you would also need a shared component that enforces the alternating “rules” that both OS understands.

that component also needs to be always awake so it will facilitate hand overs like an OS of OSes.

I am sure we already got a budget version of this called the jpeg.