# Metanet Marketplace for 3d Objects

Canonical: https://docs.projectbabbage.com/docs/quickstarts/metamarket

An end-to-end guide to building a full-stack Metanet-powered 3D object marketplace.

This quickstart will guide you through building a decentralized marketplace for 3D-printable files using UHRP storage, a React + Vite frontend, an Overlay backend, and an Express + TypeScript Key Server. You’ll use LARS and CARS to run everything locally and deploy to production.

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## What you’ll build

- **Upload Files Page**
  Users upload STL files and cover images, set metadata, and payment commitments.
- **Main Store Page**
  Browse, filter, and preview 3D objects shared by the community.
- **Details Page**
  View file info, then purchase and download.
- **Account Page**
  Manage your sales balance and remove or update your uploads.
- **Backend Overlay Service**
  Admit and index UHRP-hosted files via LARS/CARS for on-chain data flows.
- **Key Server**
  Handle encryption keys and satoshi payments in Express + TypeScript.

![Main Store Page Preview](https://docs.projectbabbage.com/assets/images/metamarket-introduction.webp)

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## Prerequisites

Make sure you have the following installed and configured:

- **Node.js** 22 or 24 (maintained and patched)
- **Docker** (with Compose plugin)
- **Git** (optional, but recommended)
- **LARS** & **CARS** CLIs installed and initialized
- A **BRC-100 wallet** running locally

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## Ready to get started?

The first step is to scaffold your project’s frontend, backend overlay, and key server folders. Follow the Project Setup guide to install dependencies, configure LARS/CARS, and verify your local environment.