Setup

This repository is a Yarn 4 (Berry) monorepo using Corepack, Turborepo, TypeScript, Vitest, and Biome.

It is structured as a multi-package workspace:

• packages/easy
• packages/medium
• packages/hard

Install dependencies

corepack enable
yarn install

Run checks

# Run all tests (via Turborepo)
yarn test

# Type checking (all packages)
yarn typecheck

# Lint code (Biome via Turbo)
yarn lint

Format code

# Format files
yarn format

# Auto-fix lint issues
yarn lint:fix

Project scripts overview

Command	Description
yarn test	Run all Vitest tests via Turbo
yarn typecheck	Run TypeScript type checking
yarn lint	Check code style (Biome)
yarn lint:fix	Auto-fix lint issues
yarn format	Format code with Biome