anchor.diff:  
       in stdenv.mkDerivation rec {
         pname = "mpd";
  -      version = "0.22.11";
  +      version = "0.23.2";
   
         src = fetchFromGitHub {
           owner  = "MusicPlayerDaemon";
           repo   = "MPD";
           rev    = "v${version}";
  -        sha256 = "sha256-X+FnZ5W1p9GuOSIxTSp1Yok+kKsLjNPOKZkJSCYk8kM=";
  +        sha256 = "sha256-gn06t8S0hh5xe5V1vnXVHSb0FwxY40onUV+Bt7oL9ic=";
         };
   
         buildInputs = [
           glib
           boost
  +        fmt
           # According to the configurePhase of meson, gtest is considered a
           # runtime dependency. Quoting:
           #
  
positive.code: # Filters
  , libsamplerate
  # Outputs
  , alsa-lib, libjack2, libpulseaudio, libshout
  # Misc
  , icu, sqlite, avahi, dbus, pcre, libgcrypt, expat
  # Services
  
negative.code:     # Output plugins
      alsa          = [ alsa-lib ];
      jack          = [ libjack2 ];
      pipewire      = [ pipewire ];
      pulse         = [ libpulseaudio ];
      shout         = [ libshout ];
      # Commercial services
  