Problem
Customers had to coordinate with several local suppliers separately.
Marketplace systems / source review pending

A central catalog with supplier-grouped carts and exact decimal money handling.
Problem
Customers had to coordinate with several local suppliers separately.
Engineering focus
Supplier-grouped cart logic and exact decimal money handling.
Scope
A central catalog spanning multiple local suppliers, with supplier-grouped carts and exact decimal money handling through checkout.
Use case
A customer browses combined supplier listings, adds items across suppliers into one order, and checks out with an accurate per-supplier total.
User roles
Customer: browses the shared catalog and places orders. Supplier: listed within the catalog with items grouped under their own cart.
Publication note
The current page keeps the brief-confirmed framing visible without presenting unverified implementation details as fact.
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