anchor.diff: -{ lib, stdenv
  +{ stdenv
  +, lib
   , fetchurl
   , meson
   , ninja
  
positive.code:     libnfs
      openssh
      gsettings-desktop-schemas
      # TODO: a ligther version of libsoup to have FTP/HTTP support?
    ] ++ lib.optionals gnomeSupport [
      gnome.libsoup
      gcr
      glib-networking # TLS support
      gnome-online-accounts
  
negative.code:     "-Dgcr=false"
      "-Dgoa=false"
      "-Dkeyring=false"
      "-Dgoogle=false"
    ] ++ lib.optionals (avahi == null) [
      "-Ddnssd=false"
  