Why You Should Consider a Monorepo for Your Next Project

When I first worked with the T3 Stack, what impressed me most was the type safety across front and back ends. A simple change in one place flowed smoothly everywhere — no guessing, no mismatches.

That experience led me to explore monorepos, and I quickly realized: for projects with multiple clients and services, this setup is a game-changer.

Why a Monorepo?

A monorepo isn’t always necessary, but it provides a solid foundation when:

• You have multiple apps or clients (web, mobile, API consumers) that need to share types or logic.
• You want consistency across your stack with minimal duplication.
• You’re building for scalability and want an easier way to manage shared dependencies.

At its core, a monorepo simplifies the developer experience by centralizing your codebase.

Key Benefits

• Type safety across boundaries With RPC methods and shared types, frontends and backends always stay in sync. No more "undefined is not a function" surprises.

• Apps and packages structure You can share more than just API logic: UI components, utility functions, and other packages can all live in one place and be reused by multiple apps.

• Developer velocity Everything lives in one repository, so onboarding is simpler, tooling is unified, and changes can be tested end-to-end without juggling multiple repos.

A Production-Ready Starter

To help others get started, I built a fullstack monorepo starter with Hono: 👉 github.com/zachuri/hono-monorepo

It’s production-ready, type-safe, and designed to show how a monorepo can streamline real-world development.

Final Thoughts

Monorepos aren’t a silver bullet — if you’re building something small, a single repo might be enough. But if your project involves multiple apps or services that need to stay in sync, a monorepo can be one of the best decisions you make early on.