anchor.diff:  
   , appstream-glib
   , cairo
  +, colord
   , efivar
   , elfutils
   , fontconfig
  
positive.code:   buildInputs = [
      appstream-glib
      cairo
      efivar
      elfutils
      fontconfig
      freetype
      fwupdate
      gcab
      gdk-pixbuf
      glib
      gnutls
      gobject-introspection
      gpgme
      libarchive
      libgpg-error
      libgudev
      libgusb
      libsmbios
      libsoup
      libusb
      pango
      polkit
      sqlite
      systemd_lib
      systemd-dummy
      util-linux_lib
    ];
  
    postPatch = ''
      patchShebangs po/test-deps
    '';
  
    mesonFlags = [
      "-Denable-doc=false"
      "-Denable-tests=false"
    ];
  
    meta = with stdenv.lib; {
  
negative.code:     owner = "hughsie";
      repo = "fwupd";
      rev = version;
      sha256 = "59be5b458dc816822e01761ac34eb41bcc4de255d064847a64ae0f631d0b0dd7";
    };
  
    nativeBuildInputs = [
      gettext
      gobject-introspection
      meson
      ninja
      python3Packages.pygobject
  