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FilePizza Development Guide

A peer-to-peer file transfer application built with modern web technologies.

Prerequisites

Node.js (v18+)
pnpm (preferred package manager)

Quick Start

git clone https://github.com/kern/filepizza.git
cd filepizza
pnpm install
pnpm dev

Available Commands

Development

pnpm dev - Start development server
pnpm dev:full - Start with Redis and COTURN for full WebRTC testing

Building & Testing

pnpm build - Build for production
pnpm test - Run unit tests with Vitest
pnpm test:watch - Run tests in watch mode
pnpm test:e2e - Run E2E tests with Playwright

Code Quality

pnpm lint:check - Check ESLint rules
pnpm lint:fix - Fix ESLint issues
pnpm format - Format code with Prettier
pnpm format:check - Check code formatting
pnpm type:check - TypeScript type checking

Docker

pnpm docker:build - Build Docker image
pnpm docker:up - Start containers
pnpm docker:down - Stop containers

CI Pipeline

pnpm ci - Run full CI pipeline (lint, format, type-check, test, build, e2e, docker)

Tech Stack

Framework: Next.js 15 with App Router
UI: React 19 + Tailwind CSS v4
Language: TypeScript
Testing: Vitest (unit) + Playwright (E2E)
WebRTC: PeerJS
State Management: TanStack Query
Themes: next-themes with View Transitions
Storage: Redis (optional)

Project Structure

src/
├── app/                    # Next.js App Router pages
├── components/             # React components
├── hooks/                  # Custom React hooks
├── utils/                  # Utility functions
└── types.ts               # TypeScript definitions

Development Tips

Using pnpm

This project uses pnpm as the package manager. Benefits include:

Faster installs and smaller disk usage
Strict dependency resolution
Built-in workspace support

Always use pnpm instead of npm or yarn:

pnpm install package-name
pnpm remove package-name
pnpm update

Code Style

ESLint + TypeScript ESLint for linting
Prettier for formatting
Husky + lint-staged for pre-commit hooks
Prefer TypeScript over JavaScript
Use kebab-case for files, PascalCase for components

Testing Strategy

Unit tests for components and utilities (tests/unit/)
E2E tests for critical user flows (tests/e2e/)
Test files follow *.test.ts[x] naming convention

WebRTC Development

For full WebRTC testing with TURN/STUN:

pnpm dev:full

This starts Redis and COTURN containers for testing peer connections behind NAT.

Key Dependencies

next - React framework
tailwindcss - CSS framework
@tanstack/react-query - Server state management
peerjs - WebRTC abstraction
next-themes - Theme switching
zod - Schema validation
vitest - Testing framework
playwright - E2E testing

Run pnpm ci before submitting PRs to ensure all checks pass.

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