anchor.diff:  let
     cfg = config.virtualisation.podman;
     toml = pkgs.formats.toml { };
  +  json = pkgs.formats.json { };
   
     inherit (lib) mkOption types;
   
  
positive.code:       '';
      };
  
  
    };
  
  
negative.code:       environment.systemPackages = [ cfg.package ]
          ++ lib.optional cfg.dockerCompat dockerCompat;
  
        environment.etc."cni/net.d/87-podman-bridge.conflist".source = net-conflist;
  
        virtualisation.containers = {
          enable = true; # Enable common /etc/containers configuration
  