anchor.diff:  
       for n in 16 24 32 48 64 96 128 256; do
         size=$n"x"$n
  -      ${imagemagick}/bin/convert opt/bisq/lib/Bisq.png -resize $size bisq.png
  +      convert opt/bisq/lib/Bisq.png -resize $size bisq.png
         install -Dm644 -t $out/share/icons/hicolor/$size/apps bisq.png
       done;
   
  
positive.code:     dpkg -x $src .
    '';
  
    installPhase = ''
      runHook preInstall
  
  
negative.code: , openjdk11
  , dpkg
  , writeScript
  , bash
  , tor
  , gnutar
  , zip
  , xz
  }:
  
  let
    bisq-launcher = writeScript "bisq-launcher" ''
      #! ${bash}/bin/bash
  
      # This is just a comment to convince Nix that Tor is a
      # runtime dependency; The Tor binary is in a *.jar file,
      # whereas Nix only scans for hashes in uncompressed text.
      # ${bisq-tor}
  
      JAVA_TOOL_OPTIONS="-XX:MaxRAM=4g" bisq-desktop-wrapped "$@"
    '';
  
    bisq-tor = writeScript "bisq-tor" ''
      #! ${bash}/bin/bash
  
      exec ${tor}/bin/tor "$@"
    '';
  in
  stdenv.mkDerivation rec {
  