anchor.diff:    passthru = {
       srcVerification = fetchurl rec {
         failEarly = true;
  -      urls = tarballUrls "1.8.24";
  +      urls = tarballUrls "1.8.25";
         inherit (src)
           outputHashAlgo;
  -      outputHash = "b81864fa6a5ec776639c02ae89998955f7702a8d10e8b8f70023c5a599d97568";
  +      outputHash = "d76d79edc31cf76e782b9f697420d3defbcc91778c3c650658086a1b748e8792";
         fullOpts = {
           pgpsigUrls = map (n: "${n}.asc") urls;
           pgpKeyFingerprint = "F5E1 1B9F FE91 1146 F41D  953D 78A1 B4DF E8F9 C57E";
  
positive.code: 
    src = fetchurl {
      urls = tarballUrls version;
      multihash = "QmaUHWFuu8kxP9wNNCdW1xrDD4zifu6qFSeb8cXbYWMUGE";
      hashOutput = false;
      sha256 = "b81864fa6a5ec776639c02ae89998955f7702a8d10e8b8f70023c5a599d97568";
    };
  
    nativeBuildInputs = optionals (!libOnly) [
  
negative.code: }:
  
  let
    version = "1.8.25";
  
    tarballUrls = version: [
      "https://pcsclite.apdu.fr/files/pcsc-lite-${version}.tar.bz2"
  