anchor.diff: -{ lib, mkDerivation, fetchurl, makeFontsConf, appimageTools,
  -  qtbase, qtsvg, qtmultimedia, qtwebsockets, qtimageformats,
  -  autoPatchelfHook, desktop-file-utils, imagemagick, makeWrapper,
  -  twemoji-color-font, xorg, libsodium, libopus, libGL, zlib, alsaLib }:
  +{ lib, mkDerivation, fetchurl, makeFontsConf, appimageTools
  +, qtbase, qtsvg, qtmultimedia, qtwebsockets, qtimageformats
  +, autoPatchelfHook, desktop-file-utils, imagemagick
  +, twemoji-color-font, xorg, libsodium, libopus, libGL, alsaLib }:
   
   mkDerivation rec {
     pname = "ripcord";
  
positive.code:   meta = with lib; {
      description = "Desktop chat client for Slack and Discord";
      homepage = "https://cancel.fm/ripcord/";
  
      # See: https://cancel.fm/ripcord/shareware-redistribution/
      license = licenses.unfreeRedistributable;
  
      maintainers = with maintainers; [ infinisil ];
      platforms = [ "x86_64-linux" ];
    };
  
negative.code:   };
  
    nativeBuildInputs = [ autoPatchelfHook desktop-file-utils imagemagick ];
    buildInputs = [ libsodium libopus libGL alsaLib ]
      ++ [ qtbase qtsvg qtmultimedia qtwebsockets qtimageformats ]
      ++ (with xorg; [ libX11 libXScrnSaver libXcursor xkeyboardconfig ]);
  
    fontsConf = makeFontsConf {
      fontDirectories = [ twemoji-color-font ];
  