anchor.diff:                      restartIfChanged = false;
                       script = "true";
                     };
  -                 
  -                environment.systemPackages = [ pkgs.hello ];
                 };
               }
             '';
  
positive.code:                     restartIfChanged = false;
                      script = "true";
                    };
                   
                   environment.systemPackages = [ pkgs.zip ];
                };
              
                testtarget2 = {pkgs, ...}:
  
negative.code:               
                # Deploy the test NixOS network expression
                
                $coordinator->mustSucceed("NIX_PATH=nixpkgs=${nixpkgs}:nixos=${nixos} SSH_OPTS='-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' disnixos-deploy-network ${logicalNetworkNix} ${physicalNetworkNix}");
                
                # Check if zip is installed on the correct machine
                $testtarget1->mustSucceed("zip -h");
  