anchor.diff:    dontWrapGApps = true;
   
     passthru = {
  -    i18n = mkLib version "i18n" "08a8lpz2j7bhwn155s0ii538qlynnnvq6fmdw1dxjfgmfy7y3r66" {
  +    i18n = mkLib version "i18n" "1dk7wis4cncmihl8fnic3jyhqcdzpifchzsp7hmf214h0vp199zr" {
         buildInputs = [
           gettext
         ];
         meta.license = licenses.gpl2; # https://github.com/KiCad/kicad-i18n/issues/3
       };
  -    symbols = mkLib version "symbols" "0l5r53wcv0518x2kl0fh1zi0d50cckc7z1739fp9z3k5a4ddk824" {
  +    symbols = mkLib version "symbols" "1lna4xlvzrxif3569pkp6mrg7fj62z3a3ri5j97lnmnnzhiddnh3" {
         meta.license = licenses.cc-by-sa-40;
       };
  -    footprints = mkLib version "footprints" "0q7y7m10pav6917ri37pzjvyh71c8lf4lh9ch258pdpl3w481zk6" {
  +    footprints = mkLib version "footprints" "0c0kcywxlaihzzwp9bi0dsr2v9j46zcdr85xmfpivmrk19apss6a" {
         meta.license = licenses.cc-by-sa-40;
       };
  -    templates = mkLib version "templates" "1nva4ckq0l2lrah0l05355cawlwd7qfxcagcv32m8hcrn781455q" {
  +    templates = mkLib version "templates" "1bagb0b94cjh7zp9z0h23b60j45kwxbsbb7b2bdk98dmph8lmzbb" {
         meta.license = licenses.cc-by-sa-40;
       };
  -    packages3d = mkLib version "packages3d" "0xla9k1rnrs00fink90y9qz766iks5lyqwnf1h2i508djqhqm5zi" {
  +    packages3d = mkLib version "packages3d" "0h2qjj8vf33jz6jhqdz90c80h5i1ydgfqnns7rn0fqphlnscb45g" {
         hydraPlatforms = []; # this is a ~1 GiB download, occupies ~5 GiB in store
         meta.license = licenses.cc-by-sa-40;
       };
  
positive.code:     license = licenses.gpl2;
      maintainers = with maintainers; [ berce ];
      platforms = with platforms; linux;
    };
  }
  
negative.code: in stdenv.mkDerivation rec {
    pname = "kicad";
    series = "5.0";
    version = "5.1.4";
  
    src = fetchurl {
      url = "https://launchpad.net/kicad/${series}/${version}/+download/kicad-${version}.tar.xz";
      sha256 = "1r60dgh6aalbpq1wsmpyxkz0nn4ck8ydfdjcrblpl69k5rks5k2j";
    };
  
    postPatch = ''
  