- Single user / No user auth / admin auth (preferred)
- Allow to register comissioned providers
- Allow to register products
- Cost type: prepaid or postpaid (consignation)
- If postpaid: allow to assign a provider to be paid
- List me margin on every sale and its summup
- Allow to register a new product on sale
- Stock management
- Adjust stock in product edit page
- Auto-debit product stock quantity on sale (if product "controlsQty" = true)
- Correctly handle sale edit regarding stock
- Mantain a history of stock changes
- Arrival of new product (allow to quickly increment balance of multiple products at once) / stock manual adjustment in batch (maybe one screen for both cases)
- Arrival of new product should allow to update both unit cost and balance
