anchor.diff:  { lib, stdenv
   , fetchurl
  +, fetchpatch
   , meson
   , ninja
   , gettext
  
positive.code:     sha256 = "sha256-huG5ujnaz3QiavpFermDtBJTuJ9he/VBOcrQiS0C2Kk=";
    };
  
    nativeBuildInputs = [
      meson
      ninja
  
negative.code: 
    buildInputs = [
      libjpeg
      libportal-gtk3
      gtk3
      gdk-pixbuf
      glib
  