Essentially inventory management for locks, including the specific bitting(s) for each lock? That actually sounds really fun to build, not terribly challenging, and probably has huge market reach.

One quick challenge though, my understanding is that the average org that needs this either contracts or has full time staff who manage their locks. Those are normally guys who manage this by placing the 10 cores they need to re-key on their work bench, maybe putting a tape label on, and then just going to the individual locks and dropping in a new core. I get the value as a management tool, but does this really improve things for the average staff locksmith?