Understanding Monorepo Architecture and Choosing the Vite Stack for Frontend Component Library Development

Before diving into actual coding, the article introduces the entire technology stack required for developing a component library, aligning its architecture with the design of Element‑ui and emphasizing the need for a monorepo structure.

What is Monorepo?

Monorepo is a long‑standing software engineering concept that places multiple projects in a single repository, as opposed to the traditional MultiRepo approach where each project has its own repository.

Pain points of MultiRepo

In a MultiRepo setup, each new project must independently configure environments, manage code reuse, versioning, infrastructure, and shared libraries, leading to duplicated effort, inconsistent versions, and high maintenance costs when changes affect many projects.

Benefits of Monorepo

Monorepo provides a unified workflow, simplifying code reuse (e.g., updating a shared npm package once for all projects), ensuring consistent environments, reducing infrastructure overhead, and easing team collaboration.

How to adopt Monorepo

Implementing a monorepo requires handling dependency analysis, build and test pipelines, CI, and performance across multiple packages. Tools such as lerna and pnpm workspace are mentioned, with the latter being the chosen solution for this project.

Why choose the Vite stack?

Historically, component libraries like Element‑ui used Rollup, Webpack, and Jest. Vite, built on native ESM support and the fast esbuild compiler (written in Go), offers dramatically faster compilation, built‑in TypeScript support, and a rich plugin ecosystem for Vue and React.

Compared with the traditional stack, Vite replaces webpack‑dev‑server with Vite, webpack+markdown with Vite‑Press for documentation, Jest with Vitest for testing, and Babel with Vite’s built‑in esbuild, while keeping ESLint and Prettier for code quality and style.

What is pnpm?

pnpm is a package manager derived from npm/yarn that provides higher performance and efficient disk usage. It can also manage monorepos, offering a simpler alternative to lerna. npm i pnpm -g Using pnpm together with a monorepo simplifies dependency installation and speeds up the development workflow.

Additional tooling

Code quality: Eslint

Code style: Prettier

Commit linting: husky

Documentation: VitePress

CI: GitHub Actions

Deployment: Vercel

CLI tool creation for better developer experience

Element

Vite Stack Component Library

Development Server

webpack-dev-server

Vite

Documentation

webpack + markdown

Vite‑Press

Testing Tool

Jest

Vitest

Syntax Transpiler

Babel

Vite (built‑in esbuild)

Code Linting

ESLint

ESLint

Code Formatting

Prettier

Prettier

With this comprehensive stack, the next article will start coding from scratch, and readers are encouraged to review the official documentation of each tool for deeper understanding.