Dev Dependency Management

Handles lockfile workflows, security scanning, and version constraints across npm, pip, cargo, and maven. The decision tree is genuinely useful for working through "should I add this dependency" questions and debugging version conflicts. Good coverage of modern tooling like pnpm workspaces, Dependabot integration, and supply chain security with SBOMs. The transitive dependency troubleshooting and override patterns are where this shines, especially the concrete guidance on using npm ls and pnpm why to debug dependency hell. Worth having when you're doing serious dependency hygiene or setting up monorepo infrastructure.