How I built a Brazilian price comparator with AI across 6 retailers (and 9000+ products)

How I built a Brazilian price comparator with AI across 6 retailers Brazilian e-commerce is fragmented. The same product costs different prices in Amazon BR, Mercado Livre, Carrefour, Magalu, Shopee, and Americanas — sometimes a 40% difference. Existing comparators are slow, full of ads, and miss most of the catalog. So I built FabIAlista — a free, AI-powered price comparator with 9.000+ products across all six retailers, an OCR scanner that reads handwritten shopping lists, and a conversational