anchor.diff:            ++ optionals cfg.distributedBuilds [ pkgs.gzip ];
   
           environment = cfg.envVars
  -          // { CURL_CA_BUNDLE = "/etc/ssl/certs/ca-certificates.crt";
  -               TMPDIR = cfg.buildLocation;
  -             }
  +          // { CURL_CA_BUNDLE = "/etc/ssl/certs/ca-certificates.crt"; }
             // config.networking.proxy.envVars;
   
           unitConfig.RequiresMountsFor = "/nix/store";
  
positive.code: 
          restartTriggers = [ nixConf ];
        };
  
      systemd.tmpfiles.rules = [ "d ${cfg.buildLocation} 0775 root root -" ];
  
      # Set up the environment variables for running Nix.
      environment.sessionVariables = cfg.envVars //
  
negative.code:         '';
        };
  
      };
  
    };
  