anchor.diff:    postPatch = ''
       chmod +x meson_post_install.py
       patchShebangs meson_post_install.py
  +    # https://github.com/wwmm/easyeffects/pull/1205
  +    substituteInPlace meson_post_install.py --replace "gtk-update-icon-cache" "gtk4-update-icon-cache"
     '';
   
     preFixup =
  
positive.code: , rnnoise
  , rubberband
  , speexdsp
  , wrapGAppsHook
  , zam-plugins
  , zita-convolver
  }:
  
negative.code:     ninja
      pkg-config
      python3
      wrapGAppsHook4
    ];
  
    buildInputs = [
  