Called “standard pantry”
To be necessarily negative, this sort of product has appeared countless times. It fills a need that people just don't have. I have four kids, a wife, a dog, a skinny pig and a bearded dragon. I can internalize shopping lists, as does my wife. It is incredibly rare that we even send reminders to each other of things. The idea of creating and managing an inventory system is just a complete non-starter.
Also, HN!=YC. I assume you meant you applied for YC?
- Families (arguably the people who would use this) probably won't use this. It's too much time overhead for minimal gains.
Don't sweat it.
It's an obvious idea like all the others. We're 2 years from a viable implementation.
Having a standard pantry which is filled with regular ingredients, but minimally packaged, marketed, etc... would result in a lower waste footprint for the environment to boot.
Further, I want to have single-use-plastics reduced as much as is possible. So, it was based on a more sustainable packaging model.