anchor.diff:  
     preFixup = ''
       patchelf --replace-needed liblttng-ust.so.0 liblttng-ust.so $out/lib/libcoreclrtraceptprovider.so
  +    patchelf --replace-needed libGraphicsMagick++-Q16.so.12 libGraphicsMagick++.so.12 $out/usr/lib/x86_64-linux-gnu/pcoip-client/vchan_plugins/libvchan-plugin-clipboard.so
     '';
   
     installPhase = ''
  
positive.code:     gdk-pixbuf
      libsoup
      glib-networking
    ];
  
    unpackPhase = ''
  
negative.code: { stdenv, lib
  , makeWrapper, dpkg, fetchurl, autoPatchelfHook
  , curl, libkrb5, lttng-ust, libpulseaudio, gtk3, openssl_1_1, icu70, webkitgtk, librsvg, gdk-pixbuf, libsoup, glib-networking, graphicsmagick_q16
  }:
  
  stdenv.mkDerivation rec {
    pname = "aws-workspaces";
    version = "4.1.0.1523";
  
    src = fetchurl {
      # ref https://d3nt0h4h6pmmc4.cloudfront.net/ubuntu/dists/bionic/main/binary-amd64/Packages
      urls = [
        "https://d3nt0h4h6pmmc4.cloudfront.net/ubuntu/dists/bionic/main/binary-amd64/workspacesclient_${version}_amd64.deb"
        "https://web.archive.org/web/20220709124028/https://d3nt0h4h6pmmc4.cloudfront.net/ubuntu/dists/bionic/main/binary-amd64/workspacesclient_${version}_amd64.deb"
      ];
      sha256 = "sha256-nOrIOPZ0yOBGOQgNQxnm1cVR9NJ+BTEC12UB7Ux1yuk=";
    };
  
    nativeBuildInputs = [
  