The Problem NBA jersey prices are all over the place. The same Mitchell & Ness jersey can be $250 on one site and $180 on another. Resale prices on eBay fluctuate daily. If you're a collector, you're constantly checking multiple platforms to find fair prices. I wanted a single tool that shows real-time market pricing across retailers — so I built one. The Stack Next.js 16 (App Router, static generation) MDX for content (each jersey has its own article with structured pricing data) Tailwind CSS 4 for UI TypeScript end-to-end Vercel for deployment + analytics Custom scraping pipeline for price updates Architecture The site has 270+ pages across 5 locales (EN, ZH, JA, KO, ES).…