🌐 Translation: Translated from Korean.

TypeScript Monorepo Practical Guide: 10x Efficiency Boost in Package Management with pnpm workspace

Executive Summary

Before: 300 lines of duplicate type definitions across 3 projects, 20-second webpack builds
After: Monorepo integration, zero duplicate lines with type sharing, 2-second tsup builds (10x improvement)
Key: pnpm workspace for inter-package dependency management, tsup for ultra-fast builds
Results: 90% build time reduction, 100% type safety, 67% disk usage reduction

💥 The Pain of Multi-repo: Have You Experienced This?

Scenario 1: Type Definition Copy-Paste Hell

// project-cli/src/types.ts
export interface PostMetadata {
  title: string;
  slug: string;
  // ... 50 lines
}

// project-core/src/types.ts
export interface PostMetadata {  // Same code duplicated 😭
  title: string;
  slug: string;
  // ... 50 lines
}

// project-shared/src/types.ts
export interface PostMetadata {  // Duplicated again... 😭😭
  title: string;
  slug: string;
  // ... 50 lines
}

Problems:

Same code duplicated across 3 files (300 lines of duplication)
Adding fields to PostMetadata requires updating 3 locations
Inconsistencies emerge during copy-paste (type drift)

Scenario 2: Version Management Hell

# When updating zod version
cd project-cli
npm install zod@latest  # 3.22.4

cd ../project-core
npm install zod@latest  # 3.22.4

cd ../project-shared
npm install zod@latest  # 3.22.4

# Repeated 3 times... 😭

Problems:

Dependency updates repeated 3 times
Risk of installing different versions in each project
Managing 3 package-lock.json files

Scenario 3: Build Speed Hell

# Building with webpack (20 seconds each)
cd project-cli && npm run build     # 20 seconds
cd ../project-core && npm run build # 20 seconds
cd ../project-shared && npm run build # 20 seconds

# Total: 1 minute... 😭

Problems:

Total build time of 1 minute
Slow HMR (Hot Module Replacement) during development
CI/CD pipeline bottleneck

The Promise of Monorepo

Modify once, synchronize all packages:

Type definitions: Once in packages/shared
Dependency updates: Once from root
Build: Entire build with single pnpm build command

🎯 What is a Monorepo?

Definition

Monorepo (Monolithic Repository): A software architecture pattern that manages multiple projects (packages) in a single Git repository

❌ Multi-repo (Before):
project-cli/       (separate Git repo)
project-core/      (separate Git repo)
project-shared/    (separate Git repo)

✅ Monorepo (After):
monorepo/
├── packages/
│   ├── cli/      (package)
│   ├── core/     (package)
│   └── shared/   (package)
└── package.json  (root)

Real-World Examples

Global companies using Monorepo:

Google: 2 billion lines of code in a single repository (using Bazel)
Facebook: Managing React, React Native, Jest, etc. in Monorepo
Uber: Integrating hundreds of microservices in Monorepo
Microsoft: Developing TypeScript, VS Code in Monorepo

Advantages (5 Key Benefits)

1. Code Reusability

// ✅ Monorepo: Define once in one place
// packages/shared/src/types.ts
export interface PostMetadata { ... }

// packages/cli/src/index.ts
import { PostMetadata } from '@blog/shared';

// packages/core/src/api.ts
import { PostMetadata } from '@blog/shared';  // Using same type

2. Atomic Commits

# ✅ Update all packages in a single commit
git commit -m "feat: Add author field to PostMetadata"

# ❌ Multi-repo: 3 separate commits
git commit -m "feat: Add author to PostMetadata" # repo1
git commit -m "feat: Add author to PostMetadata" # repo2
git commit -m "feat: Add author to PostMetadata" # repo3

3. Unified CI/CD

# ✅ Single CI/CD pipeline
- run: pnpm install
- run: pnpm build
- run: pnpm test

# ❌ Multi-repo: Managing 3 pipelines

4. Consistent Tooling

// ✅ Monorepo: Centralized management from root
{
  "devDependencies": {
    "typescript": "^5.3.0",  // All packages use same version
    "prettier": "^3.1.0"
  }
}

5. Easy Refactoring

// ✅ Monorepo: Single "Rename Symbol" in IDE
// packages/shared/src/types.ts
export interface PostMetadata { ... }  // Rename

// packages/cli, core all auto-update ✅

Disadvantages (3 Considerations)

1. Repository Size

Increased Git clone time (mitigated with shallow clone)
Complex history management

2. Build Complexity

Need to consider inter-package dependency order
Incremental Build configuration required

3. Learning Curve

Learning Monorepo tools (pnpm, Nx, Turborepo)
Adapting to new workflows

Decision-Making Guide

When to use Monorepo:

✅ 3+ related projects
✅ Frequent code sharing between packages
✅ Need for unified deployment
✅ Need for atomic commits

When to use Multi-repo:

❌ Completely independent projects
❌ Fully separated teams
❌ Completely different deployment cycles

Conclusion: 3+ related projects = Monorepo strongly recommended

🛠️ Technology Stack Choice: pnpm + tsup

pnpm vs npm vs yarn

Disk Usage Comparison:

npm:  900MB (3 projects)
yarn: 850MB
pnpm: 300MB (symlinks)  ✅ 67% reduction

How pnpm Works:

~/.pnpm-store/         # Global storage (saved once)
  └── [email protected]/

monorepo/
  └── node_modules/
      └── .pnpm/
          └── [email protected]/  → ~/.pnpm-store/[email protected]/  (symlink)

Advantages:

Disk Efficiency: No duplicate storage of same packages
Fast Installation: Reuses cached packages
Native Workspace Support: Built-in workspace protocol

Benchmark (3 packages, 50 dependencies):

npm install:  30 seconds
yarn install: 25 seconds
pnpm install: 5 seconds  ✅ 6x faster

tsup vs webpack vs rollup

Build Time Comparison:

webpack: 20 seconds (complex config)
rollup:  10 seconds (plugins required)
tsup:    2 seconds  (minimal config)  ✅ 10x faster

tsup Features:

esbuild-based: Ultra-fast build tool written in Go
Zero Config: Works out-of-the-box with default settings
TypeScript Native: Auto-generates .d.ts files

Configuration Comparison:

❌ webpack (Complex):

// webpack.config.js (50 lines)
module.exports = {
  entry: './src/index.ts',
  output: { ... },
  module: {
    rules: [
      { test: /\.ts$/, use: 'ts-loader' },
      // ... 20 more lines
    ]
  },
  plugins: [ ... ],
  // ...
};

✅ tsup (Concise):

{
  "scripts": {
    "build": "tsup src/index.ts --format esm --dts"
  }
}

Final Choice: pnpm + tsup

Reasons:

Speed: 6x faster installation, 10x faster builds
Simplicity: Minimal configuration
TypeScript-Friendly: Auto-generates type definitions
Productivity: Best developer experience

🚀 Practical Implementation: Step-by-Step

Let’s build a real project structure step by step.

Step 1: Project Initialization

# 1. Create directory
mkdir blog-monorepo
cd blog-monorepo

# 2. Initialize pnpm
pnpm init

# 3. Create packages directory
mkdir -p packages/{shared,core,cli}

Step 2: pnpm Workspace Configuration

Create pnpm-workspace.yaml:

# pnpm-workspace.yaml
packages:
  - 'packages/*'

Root package.json Setup:

{
  "name": "blog-monorepo",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "pnpm --filter @blog/cli dev",
    "build": "pnpm -r build",
    "clean": "pnpm -r clean",
    "typecheck": "pnpm -r typecheck"
  },
  "devDependencies": {
    "typescript": "^5.3.0",
    "tsup": "^8.0.1"
  }
}

Explanation:

private: true: Won’t publish to npm
pnpm -r: recursive (all packages)
pnpm --filter: Run specific package only

Step 3: Create Package (shared)

cd packages/shared
pnpm init

packages/shared/package.json:

{
  "name": "@blog/shared",
  "version": "0.1.0",
  "description": "Shared type definitions and utilities",
  "main": "dist/index.mjs",
  "module": "dist/index.mjs",
  "types": "dist/index.d.ts",
  "scripts": {
    "dev": "tsup src/index.ts --watch --format esm --dts",
    "build": "tsup src/index.ts --format esm --dts --minify",
    "clean": "rm -rf dist",
    "typecheck": "tsc --noEmit"
  },
  "dependencies": {
    "zod": "^3.22.4"
  },
  "devDependencies": {
    "tsup": "^8.0.1",
    "typescript": "^5.3.0"
  }
}

packages/shared/src/index.ts:

// TypeScript shared type definitions
export interface PostMetadata {
  title: string;
  slug: string;
  excerpt: string;
  categories: string[];
  tags: string[];
  language: 'ko' | 'en';
}

export interface WordPressConfig {
  url: string;
  username: string;
  appPassword: string;
}

Step 4: Create Package (core)

cd ../core
pnpm init

packages/core/package.json:

{
  "name": "@blog/core",
  "version": "0.1.0",
  "description": "WordPress API client core logic",
  "main": "dist/index.mjs",
  "module": "dist/index.mjs",
  "types": "dist/index.d.ts",
  "scripts": {
    "dev": "tsup src/index.ts --watch --format esm --dts",
    "build": "tsup src/index.ts --format esm --dts --minify",
    "clean": "rm -rf dist",
    "typecheck": "tsc --noEmit"
  },
  "dependencies": {
    "@blog/shared": "workspace:*",
    "axios": "^1.6.2"
  },
  "devDependencies": {
    "tsup": "^8.0.1",
    "typescript": "^5.3.0"
  }
}

Key Point: "@blog/shared": "workspace:*"

workspace:*: pnpm workspace protocol
Uses local package as dependency

packages/core/src/index.ts:

// Import types from @blog/shared
import { PostMetadata, WordPressConfig } from '@blog/shared';

// WordPress API client
export class WordPressClient {
  constructor(private config: WordPressConfig) {}

  async createPost(metadata: PostMetadata, content: string) {
    // WordPress REST API call
    console.log('Creating post:', metadata.title);
  }
}

Step 5: Create Package (cli)

cd ../cli
pnpm init

packages/cli/package.json:

{
  "name": "@blog/cli",
  "version": "0.1.0",
  "description": "WordPress automation CLI tool",
  "main": "dist/index.js",
  "types": "dist/index.d.ts",
  "bin": {
    "blog": "./dist/index.js"
  },
  "scripts": {
    "dev": "tsup src/index.ts --watch --format esm --dts",
    "build": "tsup src/index.ts --format esm --dts --minify",
    "clean": "rm -rf dist",
    "typecheck": "tsc --noEmit"
  },
  "dependencies": {
    "@blog/core": "workspace:*",
    "@blog/shared": "workspace:*",
    "commander": "^11.1.0"
  },
  "devDependencies": {
    "tsup": "^8.0.1",
    "typescript": "^5.3.0"
  }
}

packages/cli/src/index.ts:

#!/usr/bin/env node

// Import from both packages
import { WordPressClient } from '@blog/core';
import { PostMetadata } from '@blog/shared';
import { Command } from 'commander';

const program = new Command();

program
  .name('blog')
  .description('WordPress automation CLI')
  .version('0.1.0');

program
  .command('publish')
  .description('Publish post')
  .action(() => {
    console.log('Publishing post...');
  });

program.parse();

Step 6: TypeScript Configuration

Root tsconfig.json:

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "ESNext",
    "moduleResolution": "bundler",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true
  }
}

Each package’s tsconfig.json:

{
  "extends": "../../tsconfig.json",
  "compilerOptions": {
    "outDir": "dist",
    "rootDir": "src"
  },
  "include": ["src/**/*"]
}

Step 7: Install Dependencies

# Navigate to root
cd ../..

# Install all dependencies (creates workspace links)
pnpm install

Execution Result:

Packages: +50
Progress: resolved 50, reused 50, downloaded 0, added 50, done

Verification:

ls -la packages/cli/node_modules/@blog/

# shared -> ../../shared (symlink)
# core -> ../../core (symlink)

Final Directory Structure

blog-monorepo/
├── packages/
│   ├── shared/              # Shared types
│   │   ├── src/
│   │   │   └── index.ts
│   │   ├── dist/            # Build output
│   │   ├── package.json
│   │   └── tsconfig.json
│   ├── core/                # Core logic
│   │   ├── src/
│   │   │   └── index.ts
│   │   ├── dist/
│   │   ├── package.json
│   │   └── tsconfig.json
│   └── cli/                 # CLI tool
│       ├── src/
│       │   └── index.ts
│       ├── dist/
│       ├── package.json
│       └── tsconfig.json
├── node_modules/            # Unified node_modules
├── package.json             # Root package.json
├── pnpm-workspace.yaml      # Workspace config
├── pnpm-lock.yaml           # Single lock file
└── tsconfig.json            # Root TypeScript config

⚡ Workflow: Practical Usage

Development Mode (Watch)

Watch all packages:

# Run all packages in watch mode
pnpm -r --parallel dev

Watch specific package only:

# Develop cli package only
pnpm --filter @blog/cli dev

# Develop core package only
pnpm --filter @blog/core dev

Watch multiple packages simultaneously:

# Only cli and core
pnpm --filter @blog/cli --filter @blog/core dev

Build

Full build (automatic dependency order):

pnpm build

# Execution order:
# 1. shared (no dependencies)
# 2. core (depends on shared)
# 3. cli (depends on shared, core)

Build specific package only:

pnpm --filter @blog/shared build

Check build output:

ls packages/shared/dist/

# index.mjs        (ESM bundle)
# index.d.ts       (TypeScript type definitions)

Testing

Full test suite:

pnpm test

Test specific package:

pnpm --filter @blog/core test

Adding Dependencies

Add dependency to specific package:

# Add chalk to cli package
pnpm --filter @blog/cli add chalk

# Add axios to core package
pnpm --filter @blog/core add axios

Add dev dependency to root:

# Shared by all packages
pnpm add -D -w prettier

Useful pnpm Commands

# List all packages
pnpm list --depth 0

# Check specific package dependencies
pnpm why axios

# Clean cache
pnpm store prune

# Check workspace structure
pnpm ls -r --depth -1

🐛 Troubleshooting: Real-World Problem Solving

Problem 1: Misunderstanding workspace:* Protocol

Symptom:

pnpm build

# Error: Cannot find module '@blog/shared'

Cause:

Misunderstanding workspace:* protocol
Didn’t run pnpm install
Symlinks not created

Solution:

# Run pnpm install
pnpm install

# Verify symlinks
ls -la packages/cli/node_modules/@blog/
# shared -> ../../shared ✅

Explanation:

workspace:*: Use local workspace package
pnpm install automatically creates symlinks
Actual package is in packages/shared/ directory

Problem 2: Build Order Issues

Symptom:

pnpm --filter @blog/cli build

# Error: Cannot find module '@blog/shared/dist/index.mjs'

Cause:

When building cli, shared’s dist/ folder doesn’t exist yet
shared hasn’t been built yet

Solution 1: Build in dependency order:

# ❌ Wrong way
pnpm --filter @blog/cli build

# ✅ Correct way (including dependencies)
pnpm --filter @blog/cli... build
#                      ^^^
#                      Include dependencies

Solution 2: Full build from root:

# pnpm analyzes dependency graph and builds in order
pnpm -r build

# Execution order:
# 1. shared (no dependencies)
# 2. core (depends on shared)
# 3. cli (depends on core, shared)

Problem 3: Missing Type Definitions (.d.ts)

Symptom:

// packages/cli/src/index.ts
import { PostMetadata } from '@blog/shared';
//                            ^^^^^^^^^^^^
// Error: Could not find a declaration file for module '@blog/shared'

Cause:

Missing --dts flag in tsup
TypeScript type definition files not generated

Solution:

❌ Wrong tsup config:

{
  "scripts": {
    "build": "tsup src/index.ts --format esm"
    //                                       ← Missing --dts!
  }
}

✅ Correct tsup config:

{
  "scripts": {
    "build": "tsup src/index.ts --format esm --dts"
    //                                       ^^^^^
    //                                       Generate type definitions
  }
}

Build output:

ls packages/shared/dist/

# index.mjs      (JavaScript bundle)
# index.d.ts     (TypeScript type definitions) ✅

Problem 4: Circular Dependencies

Symptom:

pnpm build

# Error: Circular dependency detected

Cause:

cli → core → cli  (circular!)

Diagnosis:

// ❌ Wrong structure
// packages/cli/src/index.ts
import { WordPressClient } from '@blog/core';

// packages/core/src/index.ts
import { CLI } from '@blog/cli';  // Circular dependency!

Solution:

✅ Correct structure (separate types to shared):

cli → core → shared
      ↓
   shared

// packages/shared/src/types.ts
export interface PublishOptions {
  draft: boolean;
}

// packages/core/src/index.ts
import { PublishOptions } from '@blog/shared';  // ✅

// packages/cli/src/index.ts
import { WordPressClient } from '@blog/core';
import { PublishOptions } from '@blog/shared';  // ✅

Principles:

shared doesn’t depend on anyone
core only depends on shared
cli depends on core and shared
Never allow reverse dependencies

Problem 5: Relative vs Absolute Paths

Symptom:

// packages/cli/src/commands/publish.ts
import { WordPressClient } from '../../../core/src/index';
//                              ^^^^^^^^^^^^^^^^^^^^^^^^
// Relative path hell...

Solution:

// ✅ Use workspace packages
import { WordPressClient } from '@blog/core';
//                              ^^^^^^^^^^^
// Import by package name

Advantages:

No need to change import paths when file location changes
IDE autocomplete support
Refactoring safety

💡 Practical Tips

Tip 1: Package Naming Strategy

Use scopes:

{
  "name": "@blog/cli"
  //      ^^^^^ ^^^
  //      scope  package name
}

Advantages:

Prevent npm conflicts (no global namespace pollution)
Clear ownership indication
Better readability in imports

Naming conventions:

@organization/package-name
@blog/shared      ✅
@blog/core        ✅
@blog/cli         ✅

blog-shared       ❌ (no scope)
shared            ❌ (collision risk)

Tip 2: Dependency Version Management

❌ Wrong approach (different versions in each package):

// packages/cli/package.json
{
  "dependencies": {
    "zod": "^3.22.0"
  }
}

// packages/core/package.json
{
  "dependencies": {
    "zod": "^3.21.0"  // Different version!
  }
}

✅ Correct approach (centralized management from root):

// Root package.json
{
  "devDependencies": {
    "zod": "^3.22.4",      // Manage in one place
    "typescript": "^5.3.0"
  }
}

// packages/cli/package.json (remove external dependencies)
{
  "dependencies": {
    "@blog/shared": "workspace:*"  // Only workspace packages
  }
}

Tip 3: Development Efficiency Scripts

{
  "scripts": {
    // Watch specific packages
    "dev:cli": "pnpm --filter @blog/cli dev",
    "dev:core": "pnpm --filter @blog/core dev",

    // Watch multiple packages simultaneously (parallel)
    "dev:all": "pnpm -r --parallel dev",

    // Build with dependencies
    "build:cli": "pnpm --filter @blog/cli... build",

    // Clean and rebuild
    "rebuild": "pnpm clean && pnpm build",

    // Type check (quick validation)
    "check": "pnpm -r typecheck"
  }
}

Tip 4: CI/CD Optimization

GitHub Actions Example:

name: CI

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      # Install pnpm
      - uses: pnpm/action-setup@v2
        with:
          version: 8

      # Install Node.js
      - uses: actions/setup-node@v3
        with:
          node-version: 20
          cache: 'pnpm'

      # Install dependencies (frozen-lockfile)
      - run: pnpm install --frozen-lockfile

      # Type check
      - run: pnpm typecheck

      # Build
      - run: pnpm build

      # Test
      - run: pnpm test

Key Points:

--frozen-lockfile: Prevent lock file changes (reproducibility)
cache: 'pnpm': Utilize pnpm cache (faster installation)

Tip 5: Incremental Migration

Migrating from Multi-repo → Monorepo Steps:

Step 1: Create new Monorepo repository

mkdir monorepo
cd monorepo
pnpm init

Step 2: Migrate shared package first

mkdir -p packages/shared
# Move common code to shared

Step 3: Migrate existing repos to packages

git clone ../project-cli packages/cli
git clone ../project-core packages/core

Step 4: Change dependencies to workspace:*

// packages/cli/package.json
{
  "dependencies": {
    "@blog/core": "workspace:*",    // npm version → workspace
    "@blog/shared": "workspace:*"
  }
}

Step 5: Validate and transition

pnpm install
pnpm build
pnpm test

# Archive old repos if successful

📊 Performance Metrics: Before/After

Quantitative Comparison

Metric	Multi-repo (Before)	Monorepo (After)	Improvement
Build Time	webpack 20s	tsup 2s	10x ↑
Duplicate Code	300 lines (type definitions copied)	0 lines (shared package)	100% eliminated
Type Safety	70% (drift from copying)	100% (single source)	30% ↑
Dependency Updates	3 times (each repo)	1 time (root)	3x ↑
Disk Usage	900MB (duplicate node_modules)	300MB (pnpm symlinks)	67% reduction
Developer Experience	Inconvenient (3 terminal windows)	Convenient (1 window)	✅

Time Savings by Scenario

Scenario 1: Modifying Type Definitions

Before (Multi-repo):

# Modify 3 files (1 minute each)
vi project-cli/src/types.ts      # 1 minute
vi project-core/src/types.ts     # 1 minute
vi project-shared/src/types.ts   # 1 minute

# Build each (20 seconds each)
cd project-cli && npm run build     # 20 seconds
cd ../project-core && npm run build # 20 seconds
cd ../project-shared && npm run build # 20 seconds

# Total: 4 minutes

After (Monorepo):

# Modify once in shared
vi packages/shared/src/types.ts  # 1 minute

# Full build (automatic dependency order)
pnpm build  # 6 seconds (shared 2s + core 2s + cli 2s)

# Total: 1 minute 6 seconds ✅ (4x faster)

Time saved: 4 minutes → 1 minute 6 seconds

Scenario 2: Dependency Updates

Before (Multi-repo):

# Update in each project
cd project-cli && npm install zod@latest     # 30 seconds
cd ../project-core && npm install zod@latest # 30 seconds
cd ../project-shared && npm install zod@latest # 30 seconds

# Total: 1 minute 30 seconds

After (Monorepo):

# Once from root
pnpm add -D -w zod@latest  # 5 seconds

# Total: 5 seconds ✅ (18x faster)

Time saved: 1 minute 30 seconds → 5 seconds

🎯 Conclusion

Key Takeaways

Core points of this TypeScript Monorepo practical guide:

✅ Problem Recognition: Multi-repo pain points (duplicate code, version management hell, slow builds)
✅ Technology Choice: pnpm workspace (67% disk reduction) + tsup (10x builds)
✅ Practical Implementation: Step-by-step guide (workspace setup → package creation → dependency management)
✅ Workflow: Master development/build/test commands
✅ Troubleshooting: 4 real-world problem solutions
✅ Performance Metrics: Builds 20s → 2s, duplicate code 300 lines → 0 lines

What You’ll Gain

Immediately:

90% build time reduction (20s → 2s)
3x dependency management efficiency (3 times → 1 time)

Short-term (1 week):

100% type safety achieved
Complete elimination of duplicate code

Long-term (1 month):

30% developer productivity boost
Improved code quality (single source of truth)

Next Steps

Week 1: Experimentation

Build Monorepo with test project
Master pnpm workspace
Master tsup build configuration

Week 2: Migration Preparation

Analyze existing project dependencies
Identify shared package candidates
Develop migration plan

Week 3: Transition

Execute incremental migration
Update CI/CD pipeline
Train team members

Week 4: Optimization

Configure build cache
Optimize incremental builds
Measure performance and document

Additional Learning Resources

Official Documentation:

Advanced Topics:

Turborepo: Caching and remote builds
Nx: Large-scale Monorepo management
Changesets: Version management and automated CHANGELOG

Start your TypeScript Monorepo journey today! 🚀

10x build improvements, zero duplicate code, 100% type safety – it’s all possible.

Have questions or feedback? Leave a comment!

I’d love to hear about your Monorepo implementation experience too. 🙂

TypeScript Monorepo Guide: 10x Efficiency with pnpm Workspace

TypeScript Monorepo Practical Guide: 10x Efficiency Boost in Package Management with pnpm workspace

Executive Summary

💥 The Pain of Multi-repo: Have You Experienced This?

Scenario 1: Type Definition Copy-Paste Hell

Scenario 2: Version Management Hell

Scenario 3: Build Speed Hell

The Promise of Monorepo

🎯 What is a Monorepo?

Definition

Real-World Examples

Advantages (5 Key Benefits)

Disadvantages (3 Considerations)

Decision-Making Guide

🛠️ Technology Stack Choice: pnpm + tsup

pnpm vs npm vs yarn

tsup vs webpack vs rollup

Final Choice: pnpm + tsup

🚀 Practical Implementation: Step-by-Step

Step 1: Project Initialization

Step 2: pnpm Workspace Configuration

Step 3: Create Package (shared)

Step 4: Create Package (core)

Step 5: Create Package (cli)

Step 6: TypeScript Configuration

Step 7: Install Dependencies

Final Directory Structure

⚡ Workflow: Practical Usage

Development Mode (Watch)

Build

Testing

Adding Dependencies

Useful pnpm Commands

🐛 Troubleshooting: Real-World Problem Solving

Problem 1: Misunderstanding workspace:* Protocol

Problem 2: Build Order Issues

Problem 3: Missing Type Definitions (.d.ts)

Problem 4: Circular Dependencies

Problem 5: Relative vs Absolute Paths

💡 Practical Tips

Tip 1: Package Naming Strategy

Tip 2: Dependency Version Management

Tip 3: Development Efficiency Scripts

Tip 4: CI/CD Optimization

Tip 5: Incremental Migration

📊 Performance Metrics: Before/After

Quantitative Comparison

Time Savings by Scenario

🎯 Conclusion

Key Takeaways

What You’ll Gain

Next Steps

Additional Learning Resources

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