Not for muggles is a silly cop out. It's very nondescriptive. That "set of protocols and file formats" etc. could do literally anything.

Is it for a nas? Is it distributed? Is it some backup yoke for a cloud service? Do you run it on your own hardware? Is it all of the above? What does your data look like? Where and how are you searching through it? Is that part not for muggles either or is there a frontend? And so on basically forever.