anchor.diff:          ExecStart = ''
             ${pkgs.undervolt}/bin/undervolt \
               ${optionalString cfg.verbose "--verbose"} \
  -            ${optionalString (cfg.coreOffset != null) "--core ${cfg.coreOffset}"} \
  -            ${optionalString (cfg.coreOffset != null) "--cache ${cfg.coreOffset}"} \
  -            ${optionalString (cfg.gpuOffset != null) "--gpu ${cfg.gpuOffset}"} \
  -            ${optionalString (cfg.uncoreOffset != null) "--uncore ${cfg.uncoreOffset}"} \
  -            ${optionalString (cfg.analogioOffset != null) "--analogio ${cfg.analogioOffset}"} \
  -            ${optionalString (cfg.temp != null) "--temp ${cfg.temp}"} \
  -            ${optionalString (cfg.tempAc != null) "--temp-ac ${cfg.tempAc}"} \
  -            ${optionalString (cfg.tempBat != null) "--temp-bat ${cfg.tempBat}"}
  +            ${optionalString (cfg.coreOffset != null) "--core ${toString cfg.coreOffset}"} \
  +            ${optionalString (cfg.coreOffset != null) "--cache ${toString cfg.coreOffset}"} \
  +            ${optionalString (cfg.gpuOffset != null) "--gpu ${toString cfg.gpuOffset}"} \
  +            ${optionalString (cfg.uncoreOffset != null) "--uncore ${toString cfg.uncoreOffset}"} \
  +            ${optionalString (cfg.analogioOffset != null) "--analogio ${toString cfg.analogioOffset}"} \
  +            ${optionalString (cfg.temp != null) "--temp ${toString cfg.temp}"} \
  +            ${optionalString (cfg.tempAc != null) "--temp-ac ${toString cfg.tempAc}"} \
  +            ${optionalString (cfg.tempBat != null) "--temp-bat ${toString cfg.tempBat}"}
           '';
         };
       };
  
positive.code:     };
  
      gpuOffset = mkOption {
        type = types.nullOr types.str;
        default = null;
        description = ''
          The amount of voltage in mV to offset the GPU by.
  
negative.code:     };
  
      coreOffset = mkOption {
        type = types.nullOr types.int;
        default = null;
        description = ''
          The amount of voltage in mV to offset the CPU cores by.
  