Expo Monorepo Example

Abstract

1. Introduction

Expo monorepo Fast pnpm monorepo for cross-platform apps built with Expo

Why is it fast?  —  How to use it  —  Structure  —  Workflows  —  Caveats & Issues

This repository uses both pnpm and Turborepo to speed things up, _by a lot_. With pnpm, we leverage the installation performance using the global store cache. Turborepo helps us to run certain tasks, and cache the result if we rerun tasks with the same input or code. In the workflows we cache the pnpm store and Turborepo cache using GitHub Actions built-in cache, resulting in the best performance possible.

2. Objective

Fast pnpm monorepo for cross-platform apps built with Expo / React Native.

This project demonstrates how TypeScript, Expo, React Native can be applied to a real-world Mobile App Development problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Node.js (LTS) and npm / yarn / pnpm
• VS Code or any code editor
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/byCedric/expo-monorepo-example.git
cd expo-monorepo-example

$ npm why react-native
$ yarn why react-native

# Bun doesn't have `bun why` (yet), but you can use `yarn why` instead
$ bun install --yarn && yarn why react-native

# pnpm needs `--recursive` to search in all workspaces within the monorepo
$ pnpm why --recursive react-native

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add push notifications with Firebase Cloud Messaging
• Add offline support with local caching
• Publish an internal test build on the Play Store

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which framework is used and why (native vs cross-platform)?
2. How is app state managed across screens?
3. Where is the data stored — locally, Firebase or a REST backend?
4. How are permissions (camera, location, storage) handled?
5. How would you publish this app to the Play Store / App Store?

9. Source Code & License

This project is developed by byCedric and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.