NightShift
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

What is the problem? Most homes shop the same way every week, but nobody keeps track. Lists are written from memory. You forget the milk or buy a third jar of hummus. You do not know what you spend, or which store is cheaper. In the store, you walk the aisles and hunt for each item. What does Arya do? 1. It reads your receipts. Take a photo of a receipt. Arya reads every line and learns what your home buys and how often. 2. It writes a list for each store you use. Arya knows what you are about to run out of and puts it on the list. You can add items by typing or by voice. You can create groups in a household to manage lists. 3. It guides you in the store. Arya orders the list in the order you walk the store. If you cannot find an item, point your camera at the shelf. Arya finds it and shows you. 4. It shows where your money goes. You see what you spend, by store and by item. 5. It shows where it is cheaper. Arya tells you which items cost less in another store. 6. It helps you waste less. Snap the date on a pack, and Arya reminds you to use it before it goes bad. 7. You can ask Arya. Ask what you spent at Store A, or where olive oil is cheaper. Arya answers from your lists and receipts. 8. It connects your household and with other shoppers. When one person taps “not here”, the next shopper learns the item is out of stock. Humans help humans. How does it work? Plain code makes the decisions about what to buy and when. Meta’s models read the photos and the questions. Why does it matter? Food costs are high and food waste is high. A home that knows what it buys wastes less and spends less.