anchor.diff:      };
   
     realtimeConfig = { version, enableLatencytop, enableOptimization }:
  -    with (lib.kernel);
  -    with (lib.kernel.whenHelpers version);
  +    with (whenHelpers version);
       (standardConfig { inherit version enableLatencytop enableOptimization; }) // {
         PREEMPT = whenOlder "5.4" yes; # PREEMPT_RT deselects it.
         PREEMPT_RT_FULL = whenOlder "5.4" yes; # Renamed to PREEMPT_RT when merged into the mainline.
  
positive.code: 
  let
  
    inherit (super) lib callPackage linuxPackagesFor;
  
    cfg = super.config.musnix or {
      kernel.latencytop = false;
  
negative.code:     enableLatencytop ? cfg.kernel.latencytop,
      enableOptimization ? cfg.kernel.optimize
    }:
  
      with (whenHelpers version);
      lib.optionalAttrs enableLatencytop {
        LATENCYTOP = yes;
        SCHEDSTATS = yes;
  