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bye.sale

Own product · Product concept, user-flow design, and product development

Published August 13, 2026· Updated August 13, 2026
Status
active
Category/Tag
AIDevelopmentOwn productSaaS

A personal online garage sale: add your items, share one link with people you know, and let buyers reserve what they want without marketplace fees.

bye.sale is my product for selling unwanted items to people you can already reach through your own contacts, chats, and social networks.

Instead of placing every item in a shared marketplace and competing with thousands of other listings, you create your own sale page and share a single link.

The observation

Selling an unwanted item sounds simple. In practice, even a handful of things can turn into a separate process: creating listings, writing descriptions, publishing them, talking to strangers, and keeping track of what has already been sold or reserved.

At the same time, potential buyers may already be nearby – friends, colleagues, neighbours, followers, or people in shared chats.

That led to a simple question: do you always need a traditional marketplace for this?

A reverse wishlist

I think of bye.sale as a reverse wishlist.

A normal wishlist tells other people what you would like to get. A reverse wishlist shows them what you no longer need and are ready to sell or pass on.

The result is not another listing buried among thousands of others. It is a personal storefront belonging to one person.

The product hypothesis

The core hypothesis behind bye.sale is that, for some sales, finding an unknown buyer through a large marketplace is unnecessary.

If the seller already has a network of contacts, the product only needs to help them:

  • collect their items on one clear page;
  • reduce the work involved in creating listings;
  • get a single link they can share;
  • make it easy for a buyer to reserve an item;
  • keep control of their own sale.

In this model, distribution belongs to the seller. They share the link where people who already know them are.

How bye.sale works

A user adds items to their personal sale page.

AI helps prepare item descriptions faster. Instead of sharing a separate listing for every item, the seller can share one link to the entire sale in a private chat, group, messenger, social network, or story.

A buyer opens the page, sees that seller's items, and can reserve something they want. The seller receives a reservation notification.

The service itself is free and does not charge a sales commission.

Why it is different from a traditional marketplace

A large marketplace solves discovery by bringing buyers into its own audience and catalogue.

bye.sale starts with a different assumption: the seller may already have an audience.

That makes the personal seller page, rather than a shared catalogue, the centre of the product.

For me, this changes the product question. Instead of asking “how do we attract more buyers into the marketplace?”, the question becomes: how can we make it extremely easy for someone to turn their existing network into the audience for a small personal sale?

Where AI fits

AI is not the reason bye.sale exists.

It is a tool for removing repetitive work.

Preparing an item description is one place where that is useful. The fewer actions there are between thinking “I could sell this” and actually publishing the item, the lower the barrier to starting a sale.

I am interested in AI here not as something that needs to be added to every screen, but as a way to remove a specific piece of unnecessary work.

My role

bye.sale is my own product.

I work on the product concept, user flows, service logic, requirements, and product development.

What interests me most is the whole path from observing an everyday problem to a working product: formulating the hypothesis, making it simple enough for the user, and then testing it in a real service.

What I am testing with this product

There are several product questions I find interesting in bye.sale:

  • when an existing personal network can replace marketplace discovery;
  • how simple creating a sale needs to be for someone to move from intention to publication;
  • which parts of listing creation are worth automating;
  • whether a single link can turn a collection of unrelated items into a clear personal storefront;
  • which interactions are actually needed between publishing an item and connecting with a buyer.

I do not want to claim the answers in advance. The product itself, and how people use it, is the way to test them.

Status

bye.sale is actively being developed.

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