code links, e.g. "code":["https://git.benetou.fr/utopiah/text-code-xr-engine/src/branch/master/index.html#L129", "https://git.benetou.fr/utopiah/text-code-xr-engine/src/branch/master/index.html#L1375-L1408"]
better integration with viewer (e.g. side by side view)
in XR mode
listing of past saved demo queues
done :
save
linked from viewer
re-order
test output https://companion.benetou.fr/demos_saved_1742539103750.json