Bun as Package Manager

Bun includes a built-in package manager that's significantly faster than npm, yarn, or pnpm. It's compatible with npm packages and uses the same package.json format.

Speed Advantage

Bun's package manager is fast because:

1. Native Code: Written in Zig for maximum performance
2. Parallel Downloads: Fetches packages concurrently
3. Global Cache: Shares packages across projects
4. Symlinks: Uses hard links instead of copying files

Package.json Compatibility

Bun uses standard package.json:

Workspaces

Bun supports workspaces for monorepos:

Lockfile (bun.lockb)

Bun uses a binary lockfile for speed:

Running Scripts

Execute scripts with bun run:

Exercise: Package Manager Quiz

Test your knowledge of Bun's package manager:

Exercise: Package.json Generator

Create a function to generate a basic package.json: