Most "startup stack" articles are written by people who haven't shipped anything in two years. They'll tell you: Next.js, Prisma, Vercel, Supabase, done. That's the 2022 answer. The startups gaining traction right now are making different choices — edge-native, serverless-first, zero-lock-in choices that weren't available or production-ready three years ago. This isn't a list of "cool tools." It's the actual infrastructure decisions that let a 3-person team scale to 100k users without hiring a DevOps engineer. How I selected these I'm not ranking by GitHub stars or Twitter buzz. My criteria: Ships fast — can a solo dev go from zero to deployed in under a day?…