anchor.diff: -{ lib, stdenv
  +{ stdenv
  +, lib
   , fetchurl
  -, fetchpatch
   , meson
   , ninja
   , pkg-config
  
positive.code:   buildInputs = [
      glib
      gtk3
      systemd
      gsettings-desktop-schemas
      gnome.adwaita-icon-theme
    ];
  
    mesonFlags = [
  
negative.code: , wrapGAppsHook
  , gettext
  , itstool
  , libhandy
  , libxml2
  , libxslt
  , docbook_xsl
  