This is a B2B eCommerce system which would mainly used through a app.
It was developed for free (pro-bono) for Kathy Chen in 2017.
The idea was that people would be able to list and sell to each other. Which is more complex than common eCommerce systems. Where products are managed by admin-only users.
* B2B (business-to-business) marketing is marketing of products to businesses or other organizations for use in production of goods, for use in general business operations (such as office supplies), or for resale to other consumers, such as a wholesaler selling to a retailer.