anchor.diff:  
     meta = with stdenv.lib; {
       description = "A hybrid image/package system. It uses OSTree as an image format, and uses RPM as a component model";
  -    homepage = https://rpm-ostree.readthedocs.io/en/latest/;
  +    homepage = "https://rpm-ostree.readthedocs.io/en/latest/";
       license = licenses.lgpl2Plus;
       maintainers = with maintainers; [ copumpkin ];
       platforms = platforms.linux;
  
positive.code: { stdenv, fetchurl, ostree, rpm, which, autoconf, automake, libtool, pkgconfig, cargo, rustc,
    gobject-introspection, gtk-doc, libxml2, libxslt, docbook_xsl, docbook_xml_dtd_42, docbook_xml_dtd_43, gperf, cmake,
    libcap, glib, systemd, json-glib, libarchive, libsolv, librepo, polkit,
    bubblewrap, pcre, check, python, json_c, libmodulemd_1, utillinux, sqlite, cppunit, fetchpatch }:
  
  stdenv.mkDerivation rec {
    pname = "rpm-ostree";
    version = "2019.5";
  
    src = fetchurl {
      url = "https://github.com/projectatomic/${pname}/releases/download/v${version}/${pname}-${version}.tar.xz";
  
negative.code:     })
    ];
  
    nativeBuildInputs = [
      pkgconfig
      which
      autoconf
      automake
      libtool
      cmake
      gperf
      cargo
      rustc
      gobject-introspection
      gtk-doc
      libxml2
      libxslt
      docbook_xsl
      docbook_xml_dtd_42
      docbook_xml_dtd_43
    ];
  
    buildInputs = [
      libcap
      ostree
      rpm
      glib
      systemd
      polkit
      bubblewrap
      json-glib
      libarchive
      libsolv
      librepo
      pcre
      check
      python
      # libdnf
      json_c
      libmodulemd_1
      utillinux
      sqlite
      cppunit
    ];
  
    configureFlags = [
  