Turborepo-monorepos: Upplägget som faktiskt skalar

// In apps/web/src/components/Header.tsx
import { Button, Avatar, Dropdown } from "@acme/ui";
import { formatDate } from "@acme/utils";
import { SITE_CONFIG } from "@acme/config";

packages:
  - "apps/*"
  - "packages/*"

{
  "name": "acme-monorepo",
  "private": true,
  "scripts": {
    "build": "turbo build",
    "dev": "turbo dev",
    "lint": "turbo lint",
    "test": "turbo test",
    "clean": "turbo clean",
    "format": "prettier --write \"**/*.{ts,tsx,md,json}\""
  },
  "devDependencies": {
    "prettier": "^3.4.2",
    "turbo": "^2.4.4",
    "typescript": "^5.7.3"
  },
  "packageManager": "pnpm@9.15.4",
  "engines": {
    "node": ">=20"
  }
}

// External package - from npm
import { clsx } from "clsx";
 
// Internal package - from our monorepo
import { Button } from "@acme/ui";

{
  "$schema": "https://turbo.build/schema.json",
  "globalDependencies": [
    "**/.env.*local"
  ],
  "tasks": {
    "build": {
      "dependsOn": ["^build"],
      "outputs": ["dist/**", ".next/**", "!.next/cache/**"],
      "inputs": ["src/**", "package.json", "tsconfig.json"]
    },
    "lint": {
      "dependsOn": ["^build"],
      "cache": true
    },
    "test": {
      "dependsOn": ["^build"],
      "cache": true,
      "inputs": ["src/**", "test/**", "**/*.test.ts", "**/*.test.tsx"]
    },
    "dev": {
      "cache": false,
      "persistent": true
    },
    "clean": {
      "cache": false
    },
    "type-check": {
      "dependsOn": ["^build"],
      "cache": true
    }
  }
}

"outputs": ["dist/**", ".next/**", "!.next/cache/**"]

"inputs": ["src/**", "package.json", "tsconfig.json"]

"globalDependencies": ["**/.env.*local"]

"globalDependencies": [
  "**/.env.*local",
  "tsconfig.json"
]

{
  "name": "@acme/ui",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": {
      "types": "./src/index.ts",
      "default": "./src/index.ts"
    },
    "./styles.css": "./src/styles.css"
  },
  "scripts": {
    "build": "tsup src/index.ts --format esm,cjs --dts --external react",
    "dev": "tsup src/index.ts --format esm,cjs --dts --external react --watch",
    "clean": "rm -rf dist",
    "lint": "eslint src/",
    "type-check": "tsc --noEmit"
  },
  "dependencies": {
    "@acme/utils": "workspace:*",
    "@acme/types": "workspace:*"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "@acme/config-eslint": "workspace:*",
    "tsup": "^8.3.6",
    "react": "^19.0.0",
    "react-dom": "^19.0.0",
    "typescript": "^5.7.3"
  },
  "peerDependencies": {
    "react": "^18.0.0 || ^19.0.0",
    "react-dom": "^18.0.0 || ^19.0.0"
  }
}

{
  "exports": {
    ".": {
      "types": "./src/index.ts",
      "default": "./src/index.ts"
    },
    "./Button": {
      "types": "./src/components/Button.tsx",
      "default": "./src/components/Button.tsx"
    },
    "./styles.css": "./src/styles.css"
  }
}

{
  "name": "@acme/ui",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts"
  }
}

// apps/web/next.config.ts
import type { NextConfig } from "next";
 
const nextConfig: NextConfig = {
  transpilePackages: ["@acme/ui", "@acme/utils"],
};
 
export default nextConfig;

{
  "name": "@acme/utils",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts",
    "./date": "./src/date.ts",
    "./string": "./src/string.ts",
    "./validation": "./src/validation.ts"
  },
  "dependencies": {
    "@acme/types": "workspace:*"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "typescript": "^5.7.3"
  }
}

// Only imports date utilities, not the entire package
import { formatRelativeDate, parseISO } from "@acme/utils/date";
 
// Imports everything (barrel export)
import { formatRelativeDate, slugify, validateEmail } from "@acme/utils";

// packages/utils/src/index.ts
export * from "./date";
export * from "./string";
export * from "./validation";

{
  "name": "@acme/types",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts",
    "./api": "./src/api.ts",
    "./user": "./src/user.ts"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "typescript": "^5.7.3"
  }
}

// packages/types/src/user.ts
export interface User {
  id: string;
  email: string;
  name: string;
  role: "admin" | "user" | "viewer";
  createdAt: Date;
  updatedAt: Date;
}
 
export interface CreateUserInput {
  email: string;
  name: string;
  role?: User["role"];
}
 
export interface UserFilters {
  role?: User["role"];
  search?: string;
  page?: number;
  limit?: number;
}

// packages/types/src/api.ts
export interface ApiResponse<T> {
  data: T;
  meta?: {
    page: number;
    limit: number;
    total: number;
  };
}
 
export interface ApiError {
  code: string;
  message: string;
  details?: Record<string, string[]>;
}
 
export type ApiResult<T> =
  | { success: true; data: T }
  | { success: false; error: ApiError };

{
  "name": "@acme/config-typescript",
  "version": "0.0.0",
  "private": true,
  "files": [
    "base.json",
    "nextjs.json",
    "node.json",
    "react-library.json"
  ]
}

// packages/config-typescript/base.json
{
  "$schema": "https://json.schemastore.org/tsconfig",
  "compilerOptions": {
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "moduleDetection": "force",
    "declaration": true,
    "declarationMap": true,
    "sourceMap": true,
    "noUncheckedIndexedAccess": true,
    "noImplicitOverride": true,
    "noPropertyAccessFromIndexSignature": true
  },
  "exclude": ["node_modules"]
}

// packages/config-typescript/nextjs.json
{
  "$schema": "https://json.schemastore.org/tsconfig",
  "extends": "./base.json",
  "compilerOptions": {
    "target": "ES2017",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "noEmit": true,
    "module": "esnext",
    "moduleResolution": "bundler",
    "jsx": "preserve",
    "incremental": true,
    "plugins": [
      { "name": "next" }
    ]
  }
}

// packages/config-typescript/node.json
{
  "$schema": "https://json.schemastore.org/tsconfig",
  "extends": "./base.json",
  "compilerOptions": {
    "target": "ES2022",
    "lib": ["ES2022"],
    "module": "Node16",
    "moduleResolution": "Node16",
    "outDir": "./dist",
    "rootDir": "./src"
  }
}

// apps/web/tsconfig.json
{
  "extends": "@acme/config-typescript/nextjs",
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
      "@/*": ["./src/*"]
    }
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules"]
}

// apps/api/tsconfig.json
{
  "extends": "@acme/config-typescript/node",
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
      "@/*": ["./src/*"]
    }
  },
  "include": ["src"],
  "exclude": ["node_modules", "dist"]
}

// packages/ui/tsconfig.json
{
  "extends": "@acme/config-typescript/base",
  "compilerOptions": {
    "target": "ES2017",
    "lib": ["dom", "dom.iterable", "esnext"],
    "module": "esnext",
    "moduleResolution": "bundler",
    "jsx": "react-jsx",
    "outDir": "./dist",
    "rootDir": "./src"
  },
  "include": ["src"],
  "exclude": ["node_modules", "dist"]
}

// packages/ui/tsconfig.json (with composite)
{
  "extends": "@acme/config-typescript/base",
  "compilerOptions": {
    "composite": true,
    "outDir": "./dist",
    "rootDir": "./src",
    "jsx": "react-jsx"
  },
  "include": ["src"],
  "references": [
    { "path": "../types" },
    { "path": "../utils" }
  ]
}

// packages/config-eslint/base.js
import js from "@eslint/js";
import tseslint from "typescript-eslint";
 
export default tseslint.config(
  js.configs.recommended,
  ...tseslint.configs.recommended,
  {
    rules: {
      "@typescript-eslint/no-unused-vars": [
        "error",
        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" }
      ],
      "@typescript-eslint/no-explicit-any": "warn",
      "@typescript-eslint/consistent-type-imports": [
        "error",
        { prefer: "type-imports" }
      ],
    },
  }
);

// packages/config-eslint/next.js
import baseConfig from "./base.js";
import nextPlugin from "@next/eslint-plugin-next";
import reactPlugin from "eslint-plugin-react";
import hooksPlugin from "eslint-plugin-react-hooks";
 
export default [
  ...baseConfig,
  {
    plugins: {
      "@next/next": nextPlugin,
      "react": reactPlugin,
      "react-hooks": hooksPlugin,
    },
    rules: {
      ...nextPlugin.configs.recommended.rules,
      ...nextPlugin.configs["core-web-vitals"].rules,
      "react-hooks/exhaustive-deps": "warn",
    },
  },
];

// apps/web/eslint.config.mjs
import nextConfig from "@acme/config-eslint/next";
 
export default [
  ...nextConfig,
  {
    ignores: [".next/"],
  },
];

# Login to Vercel (one-time setup)
npx turbo login
 
# Link your repo to a Vercel project
npx turbo link

# .github/workflows/ci.yml
env:
  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
  TURBO_TEAM: ${{ vars.TURBO_TEAM }}

# docker-compose.yml for self-hosted cache
services:
  turbo-cache:
    image: ducktors/turborepo-remote-cache:latest
    ports:
      - "3000:3000"
    environment:
      TURBO_TOKEN: "your-secret-token"
      STORAGE_PROVIDER: "s3"
      S3_ACCESS_KEY: "${AWS_ACCESS_KEY_ID}"
      S3_SECRET_KEY: "${AWS_SECRET_ACCESS_KEY}"
      S3_REGION: "eu-central-1"
      S3_ENDPOINT: "https://s3.eu-central-1.amazonaws.com"
      S3_BUCKET: "turbo-cache"

// .turbo/config.json
{
  "teamId": "team_acme",
  "apiUrl": "https://turbo-cache.internal.acme.com"
}

# .github/workflows/ci.yml
name: CI
 
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
 
env:
  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
  TURBO_TEAM: ${{ vars.TURBO_TEAM }}
 
jobs:
  ci:
    name: Build, Lint, Test
    runs-on: ubuntu-latest
    timeout-minutes: 15
 
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 2   # Need parent commit for change detection
 
      - name: Setup pnpm
        uses: pnpm/action-setup@v4
 
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: "pnpm"
 
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
 
      - name: Build
        run: pnpm turbo build
 
      - name: Lint
        run: pnpm turbo lint
 
      - name: Type Check
        run: pnpm turbo type-check
 
      - name: Test
        run: pnpm turbo test

# Build only the web app and its dependencies
pnpm turbo build --filter=apps/web...
 
# Build only packages that changed since main
pnpm turbo build --filter=...[main]
 
# Build only @acme/ui and everything that depends on it
pnpm turbo build --filter=...@acme/ui
 
# Build only packages in the packages/ directory
pnpm turbo build --filter="./packages/*"

# Only build/test what changed compared to main
- name: Build affected
  run: pnpm turbo build --filter="...[origin/main]"
 
- name: Test affected
  run: pnpm turbo test --filter="...[origin/main]"

deploy:
  needs: ci
  runs-on: ubuntu-latest
  if: github.ref == 'refs/heads/main'
  strategy:
    matrix:
      app: [web, admin, docs, api]
  steps:
    - name: Checkout
      uses: actions/checkout@v4
 
    - name: Setup pnpm
      uses: pnpm/action-setup@v4
 
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: 20
        cache: "pnpm"
 
    - name: Install dependencies
      run: pnpm install --frozen-lockfile
 
    - name: Build
      run: pnpm turbo build --filter=apps/${{ matrix.app }}...
 
    - name: Deploy ${{ matrix.app }}
      run: ./scripts/deploy.sh ${{ matrix.app }}
      env:
        DEPLOY_TOKEN: ${{ secrets.DEPLOY_TOKEN }}

// turbo.json
"build": {
  "outputs": ["dist/**"]  // but your package builds to build/
}

"build": {
  "outputs": ["dist/**", "build/**", ".next/**", "!.next/cache/**"]
}

{
  "tasks": {
    "build": {
      "outputs": ["dist/**"]
    }
  },
  // Per-package overrides
  "packages": {
    "apps/web": {
      "build": {
        "outputs": [".next/**", "!.next/cache/**"]
      }
    },
    "apps/api": {
      "build": {
        "outputs": ["build/**"]
      }
    }
  }
}

// apps/web/package.json
"scripts": {
  "dev": "next dev --port 3000"
}
 
// apps/admin/package.json
"scripts": {
  "dev": "next dev --port 3001"
}
 
// apps/docs/package.json
"scripts": {
  "dev": "next dev --port 3002"
}
 
// apps/api/package.json
"scripts": {
  "dev": "tsx watch src/index.ts"  // Uses port 4000 from config
}

// packages/ui/package.json
"scripts": {
  "dev": "tsup src/index.ts --format esm,cjs --dts --external react --watch"
}

// Root package.json
{
  "pnpm": {
    "overrides": {
      "react": "^19.0.0",
      "react-dom": "^19.0.0",
      "typescript": "^5.7.3"
    }
  }
}

// BAD: packages/utils/src/api.ts
const API_URL = process.env.API_URL;  // What env? Which app?
 
export function fetchData(path: string) {
  return fetch(`${API_URL}${path}`);
}
 
// GOOD: packages/utils/src/api.ts
export function createApiClient(baseUrl: string) {
  return {
    fetch: (path: string) => fetch(`${baseUrl}${path}`),
  };
}

// apps/web/src/lib/api.ts
import { createApiClient } from "@acme/utils";
 
export const api = createApiClient(process.env.NEXT_PUBLIC_API_URL!);

// package.json
{
  "name": "acme-monorepo",
  "private": true,
  "scripts": {
    "build": "turbo build",
    "dev": "turbo dev",
    "lint": "turbo lint",
    "test": "turbo test",
    "type-check": "turbo type-check",
    "clean": "turbo clean",
    "format": "prettier --write \"**/*.{ts,tsx,js,jsx,json,md}\"",
    "format:check": "prettier --check \"**/*.{ts,tsx,js,jsx,json,md}\""
  },
  "devDependencies": {
    "prettier": "^3.4.2",
    "turbo": "^2.4.4",
    "typescript": "^5.7.3"
  },
  "packageManager": "pnpm@9.15.4",
  "engines": {
    "node": ">=20"
  },
  "pnpm": {
    "overrides": {
      "react": "^19.0.0",
      "react-dom": "^19.0.0"
    }
  }
}

# pnpm-workspace.yaml
packages:
  - "apps/*"
  - "packages/*"

// turbo.json
{
  "$schema": "https://turbo.build/schema.json",
  "globalDependencies": [
    "**/.env.*local",
    "tsconfig.json"
  ],
  "tasks": {
    "build": {
      "dependsOn": ["^build"],
      "outputs": ["dist/**", ".next/**", "!.next/cache/**"],
      "inputs": ["src/**", "package.json", "tsconfig.json"]
    },
    "lint": {
      "dependsOn": ["^build"],
      "cache": true
    },
    "test": {
      "dependsOn": ["^build"],
      "cache": true,
      "inputs": [
        "src/**",
        "test/**",
        "**/*.test.ts",
        "**/*.test.tsx",
        "vitest.config.ts"
      ]
    },
    "type-check": {
      "dependsOn": ["^build"],
      "cache": true
    },
    "dev": {
      "cache": false,
      "persistent": true
    },
    "clean": {
      "cache": false
    }
  }
}

// tsconfig.json (root — for IDE only, not used by builds)
{
  "compilerOptions": {
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true
  },
  "exclude": ["node_modules", "**/dist/**", "**/.next/**"]
}

// apps/web/package.json
{
  "name": "web",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "dev": "next dev --port 3000",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "type-check": "tsc --noEmit",
    "test": "vitest run",
    "clean": "rm -rf .next"
  },
  "dependencies": {
    "@acme/ui": "workspace:*",
    "@acme/utils": "workspace:*",
    "@acme/types": "workspace:*",
    "next": "^15.2.1",
    "react": "^19.0.0",
    "react-dom": "^19.0.0"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "@acme/config-eslint": "workspace:*",
    "@types/node": "^22.13.5",
    "@types/react": "^19.0.10",
    "@types/react-dom": "^19.0.4",
    "typescript": "^5.7.3",
    "vitest": "^3.0.7"
  }
}

// apps/web/next.config.ts
import type { NextConfig } from "next";
 
const nextConfig: NextConfig = {
  transpilePackages: ["@acme/ui", "@acme/utils"],
  reactStrictMode: true,
};
 
export default nextConfig;

// apps/web/tsconfig.json
{
  "extends": "@acme/config-typescript/nextjs",
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
      "@/*": ["./src/*"]
    }
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules"]
}

// apps/admin/package.json
{
  "name": "admin",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "dev": "next dev --port 3001",
    "build": "next build",
    "start": "next start --port 3001",
    "lint": "next lint",
    "type-check": "tsc --noEmit",
    "clean": "rm -rf .next"
  },
  "dependencies": {
    "@acme/ui": "workspace:*",
    "@acme/utils": "workspace:*",
    "@acme/types": "workspace:*",
    "next": "^15.2.1",
    "react": "^19.0.0",
    "react-dom": "^19.0.0"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "@acme/config-eslint": "workspace:*",
    "@types/node": "^22.13.5",
    "@types/react": "^19.0.10",
    "@types/react-dom": "^19.0.4",
    "typescript": "^5.7.3"
  }
}

// packages/ui/package.json
{
  "name": "@acme/ui",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts"
  },
  "scripts": {
    "lint": "eslint src/",
    "type-check": "tsc --noEmit",
    "clean": "rm -rf dist"
  },
  "dependencies": {
    "@acme/utils": "workspace:*",
    "@acme/types": "workspace:*"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "@acme/config-eslint": "workspace:*",
    "react": "^19.0.0",
    "react-dom": "^19.0.0",
    "typescript": "^5.7.3"
  },
  "peerDependencies": {
    "react": "^18.0.0 || ^19.0.0",
    "react-dom": "^18.0.0 || ^19.0.0"
  }
}

// packages/ui/src/index.ts
export { Button } from "./components/Button";
export { Input } from "./components/Input";
export { Modal } from "./components/Modal";
export { Card } from "./components/Card";
export { Badge } from "./components/Badge";
 
// Re-export types
export type { ButtonProps } from "./components/Button";
export type { InputProps } from "./components/Input";
export type { ModalProps } from "./components/Modal";

// packages/ui/src/components/Button.tsx
import { forwardRef, type ButtonHTMLAttributes } from "react";
import { cn } from "@acme/utils";
 
export interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: "primary" | "secondary" | "outline" | "ghost" | "destructive";
  size?: "sm" | "md" | "lg";
  isLoading?: boolean;
}
 
export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant = "primary", size = "md", isLoading, children, disabled, ...props }, ref) => {
    return (
      <button
        ref={ref}
        className={cn(
          "inline-flex items-center justify-center rounded-lg font-medium transition-colors",
          "focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2",
          "disabled:pointer-events-none disabled:opacity-50",
          {
            "bg-blue-600 text-white hover:bg-blue-700": variant === "primary",
            "bg-gray-100 text-gray-900 hover:bg-gray-200": variant === "secondary",
            "border border-gray-300 bg-transparent hover:bg-gray-100": variant === "outline",
            "bg-transparent hover:bg-gray-100": variant === "ghost",
            "bg-red-600 text-white hover:bg-red-700": variant === "destructive",
          },
          {
            "h-8 px-3 text-sm": size === "sm",
            "h-10 px-4 text-sm": size === "md",
            "h-12 px-6 text-base": size === "lg",
          },
          className
        )}
        disabled={disabled || isLoading}
        {...props}
      >
        {isLoading ? (
          <>
            <svg
              className="mr-2 h-4 w-4 animate-spin"
              xmlns="http://www.w3.org/2000/svg"
              fill="none"
              viewBox="0 0 24 24"
              aria-hidden="true"
            >
              <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
              <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
            </svg>
            {children}
          </>
        ) : (
          children
        )}
      </button>
    );
  }
);
 
Button.displayName = "Button";

// packages/utils/package.json
{
  "name": "@acme/utils",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts",
    "./date": "./src/date.ts",
    "./string": "./src/string.ts",
    "./cn": "./src/cn.ts"
  },
  "scripts": {
    "lint": "eslint src/",
    "type-check": "tsc --noEmit",
    "test": "vitest run",
    "clean": "rm -rf dist"
  },
  "dependencies": {
    "clsx": "^2.1.1",
    "tailwind-merge": "^3.0.1"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "typescript": "^5.7.3",
    "vitest": "^3.0.7"
  }
}

// packages/utils/src/cn.ts
import { clsx, type ClassValue } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

// packages/utils/src/date.ts
export function formatRelativeDate(date: Date): string {
  const now = new Date();
  const diffMs = now.getTime() - date.getTime();
  const diffSeconds = Math.floor(diffMs / 1000);
  const diffMinutes = Math.floor(diffSeconds / 60);
  const diffHours = Math.floor(diffMinutes / 60);
  const diffDays = Math.floor(diffHours / 24);
 
  if (diffSeconds < 60) return "just now";
  if (diffMinutes < 60) return `${diffMinutes}m ago`;
  if (diffHours < 24) return `${diffHours}h ago`;
  if (diffDays < 7) return `${diffDays}d ago`;
 
  return date.toLocaleDateString("en-US", {
    month: "short",
    day: "numeric",
    year: date.getFullYear() !== now.getFullYear() ? "numeric" : undefined,
  });
}
 
export function formatDate(date: Date, locale = "en-US"): string {
  return new Intl.DateTimeFormat(locale, {
    year: "numeric",
    month: "long",
    day: "numeric",
  }).format(date);
}

// packages/utils/src/string.ts
export function slugify(text: string): string {
  return text
    .toLowerCase()
    .trim()
    .replace(/[^\w\s-]/g, "")
    .replace(/[\s_]+/g, "-")
    .replace(/-+/g, "-");
}
 
export function truncate(text: string, maxLength: number): string {
  if (text.length <= maxLength) return text;
  return text.slice(0, maxLength).trimEnd() + "...";
}
 
export function capitalize(text: string): string {
  return text.charAt(0).toUpperCase() + text.slice(1);
}

// packages/utils/src/index.ts
export { cn } from "./cn";
export { formatRelativeDate, formatDate } from "./date";
export { slugify, truncate, capitalize } from "./string";

// packages/types/package.json
{
  "name": "@acme/types",
  "version": "0.0.0",
  "private": true,
  "exports": {
    ".": "./src/index.ts",
    "./user": "./src/user.ts",
    "./api": "./src/api.ts"
  },
  "devDependencies": {
    "@acme/config-typescript": "workspace:*",
    "typescript": "^5.7.3"
  }
}

# Create the repo
mkdir acme-monorepo && cd acme-monorepo
git init
 
# Initialize the root package
pnpm init
 
# Create the workspace file
echo 'packages:\n  - "apps/*"\n  - "packages/*"' > pnpm-workspace.yaml
 
# Install Turborepo
pnpm add -D turbo -w
 
# Create directories
mkdir -p apps/web apps/admin
mkdir -p packages/ui/src packages/utils/src packages/types/src
mkdir -p packages/config-typescript packages/config-eslint
 
# Initialize apps (from their directories)
cd apps/web && pnpm create next-app . --typescript --eslint --tailwind --app
cd ../admin && pnpm create next-app . --typescript --eslint --tailwind --app
cd ../..
 
# Add workspace dependencies
cd packages/ui && pnpm add @acme/utils@workspace:* @acme/types@workspace:*
cd ../..
cd apps/web && pnpm add @acme/ui@workspace:* @acme/utils@workspace:* @acme/types@workspace:*
cd ../..
 
# Install everything
pnpm install
 
# Verify it works
pnpm turbo build
pnpm turbo dev

// scripts/create-package.ts
import { mkdirSync, writeFileSync } from "node:fs";
import { join } from "node:path";
 
const name = process.argv[2];
if (!name) {
  console.error("Usage: tsx scripts/create-package.ts <package-name>");
  process.exit(1);
}
 
const dir = join(process.cwd(), "packages", name);
mkdirSync(join(dir, "src"), { recursive: true });
 
writeFileSync(
  join(dir, "package.json"),
  JSON.stringify(
    {
      name: `@acme/${name}`,
      version: "0.0.0",
      private: true,
      exports: { ".": "./src/index.ts" },
      scripts: {
        lint: "eslint src/",
        "type-check": "tsc --noEmit",
      },
      devDependencies: {
        "@acme/config-typescript": "workspace:*",
        typescript: "^5.7.3",
      },
    },
    null,
    2
  )
);
 
writeFileSync(
  join(dir, "tsconfig.json"),
  JSON.stringify(
    {
      extends: "@acme/config-typescript/base",
      compilerOptions: {
        outDir: "./dist",
        rootDir: "./src",
      },
      include: ["src"],
      exclude: ["node_modules", "dist"],
    },
    null,
    2
  )
);
 
writeFileSync(join(dir, "src", "index.ts"), "// Entry point\n");
 
console.log(`Created packages/${name}`);
console.log("Run: pnpm install");

npx tsx scripts/create-package.ts email
# Creates packages/email with all the boilerplate

pnpm turbo build --graph=graph.svg

pnpm turbo prune --scope=apps/web --docker

FROM node:20-alpine AS base
 
FROM base AS builder
WORKDIR /app
COPY out/json/ .
COPY out/pnpm-lock.yaml ./pnpm-lock.yaml
COPY out/pnpm-workspace.yaml ./pnpm-workspace.yaml
RUN corepack enable pnpm && pnpm install --frozen-lockfile
 
COPY out/full/ .
RUN pnpm turbo build --filter=web...
 
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production
 
COPY --from=builder /app/apps/web/.next/standalone ./
COPY --from=builder /app/apps/web/.next/static ./apps/web/.next/static
COPY --from=builder /app/apps/web/public ./apps/web/public
 
EXPOSE 3000
CMD ["node", "apps/web/server.js"]