anchor.diff:              package = pkgs.postgresql;
             };
             
  -          environment.systemPackages = [ ${disnix} ];
  +          environment.systemPackages = [ (builtins.storePath ${disnix}) ];
           };
         
           testtarget2 = {pkgs, ...}:
  
positive.code:             package = pkgs.postgresql;
            };
            
            environment.systemPackages = [ ${disnix} ];
          };
        }
      '';
  
negative.code:       $coordinator->mustSucceed("${env} disnixos-delete-network-state ${logicalNetworkNix2} ${physicalNetworkNix} --disable-disnix");
        
        $testtarget1->mustFail("echo 'select * from test' | mysql --user=root --password=verysecret -N testdb");
        $testtarget1->mustFail("echo 'select * from test' | su postgres -s /bin/sh -c 'psql --file - testdb'");
      '';
  }
  