anchor.diff:  { stdenv
   , python3Packages
   , fetchFromGitHub
  -, systemd }:
  +, systemd
  +, xrandr
  +, makeWrapper }:
   
   let
     python = python3Packages.python;
  
positive.code:     name = "autorandr-${version}";
  
      buildInputs = [ python ];
  
      installPhase = ''
        runHook preInstall
  
negative.code:         make install TARGETS='udev' PREFIX=$out DESTDIR=$out \
            UDEV_RULES_DIR=/etc/udev/rules.d
        ''}
  
        runHook postInstall
      '';
  
      postFixup = ''
        wrapProgram $out/bin/autorandr \
          --prefix PATH : ${xrandr}/bin
      '';
  
      src = fetchFromGitHub {
  