turborepo-monorepo

Turborepo Monorepo

Overview

Provides guidance for Turborepo monorepo management: workspace creation, turbo.json task configuration, Next.js/NestJS integration, testing pipelines (Vitest/Jest), CI/CD setup, and build performance optimization.

When to Use

• Create or initialize Turborepo workspaces
• Configure turbo.json tasks with dependencies and outputs
• Set up Next.js/NestJS apps in monorepo structure
• Configure Vitest/Jest test pipelines
• Build CI/CD workflows (GitHub Actions, GitLab CI)
• Implement remote caching with Vercel Remote Cache
• Optimize build times and cache hit ratios
• Debug task dependency or cache issues
• Migrate from other monorepo tools to Turborepo

Instructions

Workspace Creation

1. Create a new workspace:

   pnpm create turbo@latest my-workspace
   cd my-workspace
   

2. Initialize in existing project:

   pnpm add -D -w turbo
   

3. Create turbo.json in root (minimal config):

   {
     "$schema": "https://turborepo.dev/schema.json",
     "pipeline": {
       "build": { "dependsOn": ["^build"], "outputs": ["dist/**", ".next/**"] },
       "lint": { "outputs": [] },
       "test": { "dependsOn": ["build"], "outputs": ["coverage/**"] }
     }
   }
   

4. Add scripts to root package.json:

   { "scripts": { "build": "turbo run build", "dev": "turbo run dev", "lint": "turbo run lint", "test": "turbo run test", "clean": "turbo run clean" } }
   

5. Validate task graph before CI:

   turbo run build --dry-run --filter=...  # Verify task execution order
   

Task Configuration

1. Configure tasks in turbo.json:

   { "pipeline": { "build": { "dependsOn": ["^build"], "outputs": ["dist/**"] }, "test": { "dependsOn": ["build"], "outputs": ["coverage/**"] }, "lint": { "outputs": [] } } }
   

2. Run tasks:

   turbo run build                      # All packages
   turbo run lint test build           # Multiple tasks
   turbo run build --filter=web       # Specific package
   

3. Parallel type checking (use transit nodes to avoid cache issues):

   { "pipeline": { "transit": { "dependsOn": ["^transit"] }, "typecheck": { "dependsOn": ["transit"] } } }
   

4. Validate before committing:

   turbo run build --dry-run  # Check task order and affected packages
   

Framework Integration