anchor.diff:  , rnnoise
   , rubberband
   , speexdsp
  -, wrapGAppsHook
  +, wrapGAppsHook4
   , zam-plugins
   , zita-convolver
   }:
  
positive.code:   postPatch = ''
      chmod +x meson_post_install.py
      patchShebangs meson_post_install.py
    '';
  
    preFixup =
  
negative.code:     ninja
      pkg-config
      python3
      wrapGAppsHook4
    ];
  
    buildInputs = [
  