Metanet Marketplace for 3d Objects

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.

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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.