anchor.diff:  
             LOGFILE=/dev/null tests='exec(os.environ["testScript"])' ${driver}/bin/nixos-test-driver
           '';
  +
  +      passthru = driver.passthru;
       };
   
   
  
positive.code:             testScript = testScript';
              preferLocalBuild = true;
              testName = name;
              passthru = {
                inherit nodes;
              };
            }
  
negative.code:     , name ? "unnamed"
        # Skip linting (mainly intended for faster dev cycles)
      , skipLint ? false
      , passthru ? {}
      , ...
      } @ t:
      let
  