Melt Studio rebuilt the Shopify-to-CS-Cart integration behind Taste Supply — a multi-vendor marketplace for American specialty food — in four weeks, as part of its pro-bono prototype program, so products, inventory, and orders stay in sync across every vendor's store.

Taste Supply: a multi-vendor marketplace for American specialty food

George Inge founded Taste Supply to be the Etsy of American specialty food. The marketplace holds no inventory: independent food makers list their products, and every order is fulfilled directly by the maker. With a working marketplace and more than 500 orders already, Taste Supply was proving that people will buy.

The challenge: a Shopify integration that every vendor and every order depends on

Most food makers already run their business on Shopify. Taste Supply's model depends on a connection that brings each maker's products, stock, and orders into the marketplace, and sends orders back — for every vendor, all the time. As the catalog and order volume grew, that connection had to handle more: product variants and bundles, cancellations and refunds, multiple tracking numbers, and vendor notifications. Getting it right was the step between early traction and the next funding milestone.

The solution: a reliable Shopify multi-vendor sync, without rebuilding the marketplace

The marketplace itself worked, so we didn't touch what didn't need it. We focused on the integration:

• Product sync without duplicates, including variants and bundles like "pick 3 flavors".

• Real-time inventory sync so stock in the marketplace matches each maker's Shopify store.

• Two-way order sync: orders placed on Taste Supply reach the maker's Shopify, and status changes — fulfilled, canceled, refunded — flow back.

• Vendor notifications when orders are placed and fulfilled.

• A modern codebase: migrated from JavaScript to TypeScript, upgraded to Node.js 20, with tests and a staging environment for safe releases.

We closed with a hardening roadmap — managed database, error monitoring, stronger API authentication — so Taste Supply's team knows exactly what comes next as volume grows.

How a dedicated team shipped it in four weeks

Two developers and a project manager, working with Taste Supply's CTO in standups twice a week and testing against real vendor stores. Every change went through staging before production.

Results: a stable integration live in production, on schedule

• The rebuilt Shopify integration deployed to production by the October 1 deadline.

• Duplicate products eliminated and inventory mismatches resolved.

• Orders, refunds, and cancellations syncing correctly in both directions.

• A clear technical roadmap for scaling the marketplace.

Have a product that's already selling 500+ orders, and a piece of it that has to hold up as you grow? That's the gap we fill.

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Thx for reading. With Love, MS.