anchor.diff:  }:
     stdenv.mkDerivation rec {
       pname = "waybar";
  -    version = "0.9.2";
  +    version = "0.9.3";
   
       src = fetchFromGitHub {
         owner = "Alexays";
         repo = "Waybar";
         rev = version;
  -      sha256 = "1gfxyjzwfqznyrpyr3322z3w844i1lh77kly4hcpy9y5gsfmlafy";
  +      sha256 = "0ks719khhg2zwpyiwa2079i6962qcxpapm28hmr4ckpsp2n659ck";
       };
   
       nativeBuildInputs = [
  
positive.code: { stdenv, fetchFromGitHub, meson, pkgconfig, ninja, wrapGAppsHook
  , wayland, wlroots, gtkmm3, libinput, libsigcxx, jsoncpp, fmt, scdoc, spdlog, gtk-layer-shell
  , howard-hinnant-date, cmake
  , traySupport  ? true,  libdbusmenu-gtk3
  , pulseSupport ? false, libpulseaudio
  
negative.code:     strictDeps = false;
  
      buildInputs = with stdenv.lib;
        [ wayland wlroots gtkmm3 libsigcxx jsoncpp fmt spdlog gtk-layer-shell howard-hinnant-date ]
        ++ optional  traySupport  libdbusmenu-gtk3
        ++ optional  pulseSupport libpulseaudio
        ++ optional  nlSupport    libnl
  