anchor.diff:        default = false;
         description = lib.mdDoc ''
           Whether or not to enable Picom as the X.org composite manager.
  -      '';
  -    };
  -
  -    experimentalBackends = mkOption {
  -      type = types.bool;
  -      default = false;
  -      description = lib.mdDoc ''
  -        Whether to use the unstable new reimplementation of the backends.
         '';
       };
   
  
positive.code:       since picom v6 and was subsequently removed by upstream.
        See https://github.com/yshui/picom/commit/bcbc410
      '')
    ];
  
    options.services.picom = {
  
negative.code:       };
  
        serviceConfig = {
          ExecStart = "${pkgs.picom}/bin/picom --config ${configFile}";
          RestartSec = 3;
          Restart = "always";
        };
  