I build custom SaaS platforms.websites.

The brief

Sweet Valley Produce ran its packing floor on a paper form. Every bin received, every box packed, every lot shipped was a handwritten row — impossible to audit, and impossible to trace a buyer complaint back to the field it came from.

What I built

A multi-tenant SaaS covering receiving, packing, storage, orders, and invoicing, driven from a phone at the dock. Tenant isolation is enforced in Postgres by row-level security rather than in application code, and verified by an isolation harness that runs in CI. Farms subscribe; SVP is tenant #1.

Stack

• React Native (Expo)
• TypeScript
• PostgreSQL + RLS
• Supabase Edge Functions
• Stripe
• Claude API

The brief

Shoppers spend hundreds on well-reviewed products that were never going to work on their hair. Rating apps stamp one universal score on every ingredient; hair only has good matches. The brief: score the product for the person holding it.

What I built

A scan-to-personalized-score pipeline over a 1,500+ ingredient science layer, scored entirely on-device: ingredient role × product category × the user's hair profile, with a health gate that vetoes unsuitable products. Routine builder and social layer round out the loop.

Stack

• React Native (Expo)
• TypeScript
• Supabase
• Deno edge functions
• Claude API

The brief

Ed builds store fixtures for markets, carnicerías and dulcerías across the Central Valley, plus kitchens and closets for homes. He quoted jobs by sketching them on paper, and the shop had no website and no Google listing.

What I built

A bilingual site where customers set a piece's measurements, watch it drawn to size in 3D, and send it with photos. Ed prices each piece from a Spanish-first work board on his phone; one tap sends a Square invoice for the deposit — or shows a QR code the customer scans on the spot — and payments come back by signed webhook.

Stack

• Next.js 16
• TypeScript
• three.js
• Supabase
• Square
• Resend