anchor.diff:      meson
       ninja
       pkg-config
  -    wrapGAppsHook
  +    wrapGAppsHook4
       desktop-file-utils
  -    appstream-glib
     ];
   
     buildInputs = [
  
positive.code: , meson
  , ninja
  , pkg-config
  , wrapGAppsHook
  , desktop-file-utils
  , appstream-glib
  , python3Packages
  
negative.code: 
    postPatch = ''
      patchShebangs build-aux/meson/postinstall.py
      substituteInPlace build-aux/meson/postinstall.py \
        --replace gtk-update-icon-cache gtk4-update-icon-cache
    '';
  
    meta = with lib; {
  