This discussion went even further at least as early as 2021: Announcing Nomia, a general resource manager inspired by Nix
To summarise: What if any operating system resource was immutably addressable?
I very much subscribe to this view, and would go even further: What if any computation state was immutably addressable?
Racket – one of the most alive and relevant Lisps – pretty much goes in this direction with its first-class treatment of continuations.