anchor.diff:      libgee
       libgphoto2
       libgudev
  +    libhandy
       libraw
       librest
       libsoup
  
positive.code: { lib, stdenv
  , fetchFromGitHub
  , fetchpatch
  , nix-update-script
  , pantheon
  , meson
  
negative.code: , libaccounts-glib
  , libexif
  , libgee
  , libhandy
  , geocode-glib
  , gexiv2
  , libgphoto2
  