Bun: Why Package Installs Are 7x Faster Than npm

Bun package manager is renowned for its blazing speed, averaging ~7x faster than npm, ~4x faster than pnpm, and ~17x faster than yarn. This isn't magic; Bun treats package installation as a systems programming problem, not a JavaScript problem. It achieves this through minimizing system calls, caching manifests as binaries, optimizing tarball extraction, leveraging OS-native file copying, and scaling across CPU cores. The article delves into how Bun, written in Zig, bypasses Node.js's limitations (thread pool, event loop) to achieve incredibly fast package installations.