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PROVENANCE — I Built an Offline AI Antique Appraiser That Runs in a Basement with No Signal

A developer built PROVENANCE, a fully offline antique appraisal and listing-writer app that runs locally on a laptop with no network connection. The tool takes a photo of an item and returns an appraisal and marketplace listing copy, targeting high-volume resellers who pay $20–$50/month for cloud listing tools; it is offered as a $29 one-time license or $9/month for model updates. The project includes a mock mode that activates automatically when Ollama is not installed, letting users evaluate the full UI without setup.

by read1 min views2 publishedOct 18, 2026

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle

PROVENANCE is a private, fully-offline antique appraisal and listing writer for resellers who flip on eBay, Etsy, Depop, and Facebook Marketplace.

You drop a photo of an item. It gives you back:

Everything runs on your laptop. Nothing leaves the room. $0 per appraisal after setup.

Who would pay for it? Serious resellers — people doing 50–200+ items a month. They're already paying cloud listing tools $20–$50/month. PROVENANCE replaces that with a $29 one-time license (or $9/month for model updates). At 50 items/month, it pays back in under two months. At 200 items/month, the savings are $80–$100/month, forever.

The unsolved problem: estate sales happen in basements with no Wi-Fi. Purchase costs and sourcing locations are competitive intelligence — resellers don't want them on a server. And cloud listing tools charge per-item, which compounds at volume.

Try it with zero setup: If Ollama is not installed, MOCK MODE activates automatically — the full UI runs with realistic canned responses so you can evaluate the product before installing anything.

bash
git clone https://github.com/sohaibq914/HACKTOBER_W2
cd HACKTOBER_W2
.\start.ps1   # Windows — installs deps, starts both servers, opens browser
./start.sh    # Linux / macOS
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