React Micro Frontend Monorepo Setup with Turborepo

"Just npm run dev." That one command starts 12 React applications on 12 different ports — all in parallel. No Docker. No separate terminal tabs. No manual startup scripts. How? Turborepo + npm workspaces + Webpack 5 Module Federation. I just published a step-by-step guide for setting up a React Micro Frontend monorepo from scratch. Every config comes from a production system with 11 React MFEs on ports 4000–4011. What you'll build: → Root package.json with npm workspaces → turbo.json pipeline config (build, dev, start) → Host webpack.config.js — LOCAL and PRODUCTION (they're different!) → Remote MFE webpack.config.js — LOCAL and PRODUCTION → The async boundary pattern (import('./bootstrap')) and why it's required → Shared @myapp/store (Redux singleton) and @myapp/api (axios interceptors) → Host App.jsx with lazy-loaded routes for 11 MFEs → PostCSS + Tailwind config per MFE → Common mistakes table with 6 errors, causes, and fixes Key insight: Local dev uses https://localhost:PORT/remote