You instantiate the nix config and then lookup the value `nix-instantiate --eval -A config.services.resolved.enabled /etc/nixos/configuration.nix` This is way

You instantiate the nix config and then lookup the value `nix-instantiate --eval -A config.services.resolved.enabled /etc/nixos/configuration.nix` This is way better than a stateful package manager making a non-revertible change without even telling me.