final: prev: {
  hydrus = prev.hydrus.overrideAttrs (old:
    let version = "435";
    in
    {
      inherit version;

      src = prev.fetchFromGitHub {
        owner = "hydrusnetwork";
        repo = old.pname;
        rev = "v${version}";
        sha256 = "sha256-+YOFqRgyNtdVBBCb6MWb+PqUoGvt8M0/ygiHrvxdWWg=";
      };

      postPatch = ''
        sed 's;os\.path\.join(\sHC\.BIN_DIR,.*;"${prev.miniupnpc_2}/bin/upnpc";' \
          -i ./hydrus/core/networking/HydrusNATPunch.py
        sed 's;os\.path\.join(\sHC\.BIN_DIR,.*;"${prev.swftools}/bin/swfrender";' \
          -i ./hydrus/core/HydrusFlashHandling.py
      '';
    });
}