Sirv Static File Server Middleware

Sirv is an optimized and lightweight middleware designed for serving static assets in Node.js applications, compatible with frameworks like Polka, Express, and native HTTP/S servers. The current stable version is 3.0.2. Its primary differentiator is a significant performance advantage over alternatives like `serve-static` because it pre-scans and caches file system information upfront (when not in 'dev' mode), avoiding costly per-request file system checks. This makes it very efficient for production deployments. Releases are active, with recent patches and a major version upgrade to v3.0.0 that introduced native ESM support and a higher Node.js baseline. It ships with TypeScript types, enhancing developer experience.