So, would that someone leak the code, or am I asking too much?
You're implying that code needs to be leaked. It doesn't.
All the necessary code to write a backup utility is available. Proper examination of the public-domain emptool sources will reveal the necessary things you need to write a backup program.
There may not be a backup/restore utility in emptool, but the pieces are there, watiing to be used. Somebody please write one, OK?
And while you're at it, please put file-taxi capability into it, too, so we can have a catch-all utility for all empeg file transfers.
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Tony Fabris