What is a monorepo?

Learn the single repository model of the monorepo approach.

What is a monorepo?

A monorepo is a development approach where multiple projects or applications are stored in a single Git repository. For example, a company's web application, mobile application, and shared libraries can exist in the same repository.

company/
├── frontend/
├── backend/
├── mobile/
└── shared/

This allows projects to manage shared files and changes through a single repository.

One repository, multiple projects

When using a monorepo, each project has its own directory, but all projects share the same Git history. A single commit can contain changes affecting multiple projects.

workspace/
├── api/
│   └── index.js
├── web/
│   └── app.js
└── packages/
    └── utils.js

This model makes sharing common code and reviewing cross-project changes easier. However, cloning and maintenance costs can increase in large repositories.

Exercise Create monorepo directories

Create the frontend, backend, and shared directories for a monorepo. Then list the directories using the find command.

Show example solution

mkdir -p frontend backend shared
find . -maxdepth 1 -type d | sort

Test yourself

Which approach describes storing a company's web, mobile, and server projects in one Git repository?
- Multirepo
- Monorepo
- Submodule
- Worktree
Show answer

Monorepo — In the monorepo approach, multiple projects can be stored in different directories of the same Git repository.

Complete the shared repository structure

workspace/
├── frontend/
├── backend/
└── ____/

Show answer

workspace/
├── frontend/
├── backend/
└── shared/

Monorepo components

Monorepo

Stores multiple projects in one repo
Single repo

One Git repository
Multi-project

Multiple projects
Ortak kod

Shared between projects

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