anchor.diff: -{ lib, stdenv
  +{ stdenv
  +, lib
   , fetchFromGitLab
  +, fetchpatch
   , pkg-config
   , vala
   , glib
  
positive.code:     owner = "GNOME";
      repo = "gnome-online-accounts";
      rev = version;
      sha256 = "sha256-8dp3cizyQVHegDxX9G6iGLW5g44audn431hCPMS/KlA=";
    };
  
    outputs = [ "out" "man" "dev" "devdoc" ];
  
    mesonFlags = [
      "-Dfedora=false" # not useful in NixOS or for NixOS users.
  
negative.code: , python3
  , libxslt
  , gtk3
  , webkitgtk_4_1
  , json-glib
  , librest_1_0
  , libxml2
  , libsecret
  , gtk-doc
  , gobject-introspection
  , gettext
  , icu
  , glib-networking
  , libsoup_3
  , docbook-xsl-nons
  , docbook_xml_dtd_412
  , gnome
  