Cloudflare Workers Dev Experience

It walks through Wrangler configuration, proper TypeScript setup with the right module resolution settings, and handling preview IDs for KV and D1 so you stop seeing "undefined" errors. The security section on supply chain practices for scaffolding tools is a nice touch, especially the cooldown period advice. Most helpful when you're either bootstrapping a new worker project or troubleshooting why hot reload isn't picking up changes. The error prevention table covering the top six issues (binding configs, HMR, CORS) will save you from the usual local dev headaches.