Turborepo Monorepo

This handles the full spectrum of Turborepo setup and optimization, from scaffolding a new monorepo to debugging cache misses in CI. It covers workspace creation, turbo.json pipeline configuration, Next.js and NestJS integration, and test setup with Vitest or Jest. The guidance on task dependencies is solid, especially the transit node pattern for parallel type checking without cache issues. Includes working GitHub Actions examples with validation checkpoints and filter syntax for running only affected packages. If you're managing a TypeScript monorepo or migrating from Lerna or Nx, this gives you the task configuration patterns and caching strategies you actually need.