npm, Yarn, pnpm, Bun, Deno Dependency Models Compared

npm prioritizes compatibility but creates disk bloat. pnpm uses content-addressable linking to optimize storage. Yarn Berry removes node_modules with Plug'n'Play. Bun focuses on installation speed. Deno rethinks dependency fetching entirely. The right choice depends on monorepo scale, performance, tooling, and ecosystem maturity.