this repo has 31 stars and it does what Helium 10 and Jungle Scout charge $99 a month for... one dev built a full Amazon FBA research engine from scratch, product hunting, competitor intel, supplier sourcing, profit modeling, the entire stack, and open sourced it 31 stars, this is criminal 1/ point it at any Amazon niche and it scrapes search results, product pages, BSR history and reviews using headless browsers with rotating proxies, then scores every opportunity 0 to 100 across 9 weighted signals with 9 hard disqualification filters 2/ it scrapes 1688..com suppliers for real factory pricing and MOQs, calculates your full landed cost including FOB, shipping, customs, Section 301 tariffs, FBA prep and inbound fees, and spits out true unit economics 3/ AI clusters review pain points, detects competitor listing weaknesses across 7 dimensions, and generates a complaint-driven product blueprint showing you exactly what to improve and how to differentiate 4/ generates 52-week financial projections across bull, base and bear scenarios with weekly P&L, cumulative profit, break-even timeline, PPC budget and a week-by-week launch playbook full stack app, Next.js frontend, FastAPI backend, PostgreSQL, Celery workers, self-hosted, no subscription, no per-search limits people pay thousands a year for tools that do less than this link in the comments ⬇️ follow for more