anchor.diff:      };
     };
   
  +  imports = [
  +    (mkRemovedOptionModule [ "services" "earlyoom" "useKernelOOMKiller" ] ''
  +      This option is deprecated and ignored by earlyoom since 1.2.
  +    '')
  +  ];
  +
     config = mkIf ecfg.enable {
       assertions = [
         { assertion = ecfg.freeMemThreshold > 0 && ecfg.freeMemThreshold <= 100;
           message = "Needs to be a positive percentage"; }
         { assertion = ecfg.freeSwapThreshold > 0 && ecfg.freeSwapThreshold <= 100;
           message = "Needs to be a positive percentage"; }
  -      { assertion = !ecfg.useKernelOOMKiller || !ecfg.ignoreOOMScoreAdjust;
  -        message = "Both options in conjunction do not make sense"; }
       ];
   
  +    # TODO: reimplement this option as -N after 1.7 (https://github.com/rfjakob/earlyoom/commit/afe03606)
       warnings = optional (ecfg.notificationsCommand != null)
         "`services.earlyoom.notificationsCommand` is deprecated and ignored by earlyoom since 1.6.";
   
  
positive.code:         '';
        };
  
        useKernelOOMKiller= mkOption {
          type = types.bool;
          default = false;
          description = ''
            Use kernel OOM killer instead of own user-space implementation.
          '';
        };
  
        ignoreOOMScoreAdjust = mkOption {
          type = types.bool;
          default = false;
          description = ''
            Ignore oom_score_adjust values of processes.
            User-space implementation only.
          '';
        };
  
  
negative.code:       serviceConfig = {
          StandardOutput = "null";
          StandardError = "journal";
          ExecStart = concatStringsSep " " ([
            "${pkgs.earlyoom}/bin/earlyoom"
            "-m ${toString ecfg.freeMemThreshold}"
            "-s ${toString ecfg.freeSwapThreshold}"
          ] ++ optional ecfg.ignoreOOMScoreAdjust "-i"
            ++ optional ecfg.enableDebugInfo "-d"
            ++ optional ecfg.enableNotifications "-n");
        };
      };
  
  