* nongnu/packages/game-client.scm (heroic-client, heroic-extra-client-libs,
heroic-container, heroic-nvidia-container, heroic, heroic-nvidia): New
variables.
* nonguix/multi-arch-container.scm (make-container-wrapper): Preserve "^SSL_"
for heroic to use curl.
(make-internal-script): Add symlink for "/usr/share/glib-2.0".