TypeScript Monorepos: Designing Scalable Codebases

Managing multiple TypeScript packages within a single repository can quickly lead to configuration drift, slow builds, and dependency chaos. To build sustainable software at scale, you need a structured approach to share configurations and optimize build workflows. This course teaches you how to design, configure, and maintain robust TypeScript monorepos from the ground up. You will learn how to unify configurations across your codebase, manage dependencies efficiently, and leverage modern tooling to keep your development workflow fast and reliable. What you'll learn: 1. Understand foundational monorepo concepts, directory structures, and workspace patterns. 2. Configure shared TypeScript settings, ESLint rules, and testing frameworks across multiple packages. 3. Manage dependencies efficiently using modern package managers and workspace protocols. 4. Implement build caching and task orchestration using modern tools like Nx and Turborepo. 5. Apply TypeScript project references to optimize compilation times in large codebases. Starting with basic monorepo concepts and workspace configuration, this text-based guide walks you through step-by-step codebase organization. You will read detailed architectural explanations, analyze real-world configuration files, and practice structuring multi-package projects through written exercises. This course is designed for developers who have a basic understanding of TypeScript and want to learn how to manage multi-package projects efficiently. No prior experience with monorepos is required. Start reading today to build cleaner, more maintainable TypeScript codebases.