How I shipped a cross-platform watch arbitrage tracker on Apify in 2 weeks (and the 5 production bugs that almost killed the launch)

TL;DR — I built Watch Arbitrage Tracker (Apify Store, GitHub): a Crawlee + Camoufox actor that scrapes 6 luxury-watch marketplaces in parallel, computes the cross-platform median price for any Patek/Rolex/AP reference, and pings Telegram the moment a...