The Package-managers roadmap

Every Package-managers lesson we teach, laid out as one path. Each station is a stage; tap any lesson to open it. Stations turn teal as you finish them.

Legend:Lesson stageStage completeTap a lesson to open it

Package Managers: Core Fundamentals & package.json

What is a Package Manager?

package.json Anatomy & Fields

The "exports" Field & ESM vs CJS

Installing Packages & The npm Registry

Semantic Versioning (SemVer)

Caret (^), Tilde (~), and Fixed Versions

Package Managers: Dependencies & Lockfiles

dependencies, devDependencies & peerDependencies

node_modules Structure & Hoisting

The Lockfile (package-lock.json)

Global vs Local Install

Running Executables (npx)

npm run & Lifecycle Hooks

Package Managers: Modern Alternatives

Yarn & Plug'n'Play (PnP)

pnpm & Content-Addressable Store

Bun Package Manager

Corepack & "packageManager"

Package Managers: Overrides & Monorepos

Package Overrides & Resolutions

Hotfixing Dependencies (patch)

Monorepos & Workspaces

Publishing & Private Registries

Package Managers: Security & CI/CD

Security Audits & Supply Chain

Deterministic CI Builds

Essential npm CLI Commands

Dead Dependencies & Bundle Weight