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CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+Pake is a tool that turns any webpage into a desktop app with Rust, using Tauri framework. It's much lighter than Electron (~5M vs ~100M+) and provides better performance. The project consists of a CLI tool for packaging web apps and the core Tauri application framework.
+
+## Commands
+
+### Development
+
+```bash
+# Install dependencies
+npm i
+
+# Local development (right-click to open debug mode)
+npm run dev
+
+# CLI development with hot reload
+npm run cli:dev
+
+# Build CLI tools
+npm run cli:build
+```
+
+### Building
+
+```bash
+# Production build
+npm run build
+
+# Debug build
+npm run build:debug
+
+# Mac universal build (Intel + M1)
+npm run build:mac
+
+# Generate app configuration
+npm run build:config
+```
+
+### CLI Usage
+
+```bash
+# Install CLI globally
+npm install -g pake-cli
+
+# Package a webpage
+pake https://example.com --name MyApp --width 1200 --height 800
+
+# Development with custom options
+# Modify DEFAULT_DEV_PAKE_OPTIONS in bin/defaults.ts
+npm run cli:dev
+```
+
+### Analysis
+
+```bash
+# Analyze binary size
+npm run analyze
+```
+
+## Architecture
+
+### Core Components
+
+1. **CLI Tool** (`bin/`): Node.js/TypeScript-based command-line interface
+
+   - `bin/cli.ts` - Main CLI entry point with Commander.js
+   - `bin/builders/` - Platform-specific builders (Mac, Windows, Linux)
+   - `bin/options/` - CLI option processing and validation
+   - `bin/utils/` - Utility functions for URL validation, platform detection
+
+2. **Tauri Application** (`src-tauri/`): Rust-based desktop app framework
+
+   - `src-tauri/src/lib.rs` - Main application entry point
+   - `src-tauri/src/app/` - Application modules (config, window, system tray, shortcuts)
+   - `src-tauri/src/inject/` - JavaScript/CSS injection for web pages
+   - `src-tauri/pake.json` - Default app configuration
+
+3. **Build System**: Uses Rollup for CLI bundling and Tauri for app packaging
+
+### Configuration System
+
+- **pake.json**: Main configuration file defining window properties, user agents, system tray settings
+- **tauri.conf.json**: Tauri-specific configuration
+- Platform-specific configs: `tauri.macos.conf.json`, `tauri.windows.conf.json`, `tauri.linux.conf.json`
+
+### Key Features Implementation
+
+- **Window Management**: `src-tauri/src/app/window.rs` - Window creation, sizing, title bar handling
+- **System Tray**: `src-tauri/src/app/setup.rs` - Cross-platform system tray integration
+- **Global Shortcuts**: Activation shortcuts for bringing app to foreground
+- **Web Integration**: Custom user agents, proxy support, CSS/JS injection
+- **Multi-platform**: Builds for macOS (Intel/M1), Windows, Linux (deb/appimage/rpm)
+
+## File Injection System
+
+The project supports injecting custom CSS/JS files into webpages:
+
+- Files in `src-tauri/src/inject/` contain the injection logic
+- Use `--inject` CLI option to specify custom files
+- Supports both local and remote injection files
+
+## Platform-Specific Notes
+
+### macOS
+
+- Supports universal builds (Intel + M1) with `--multi-arch`
+- Hide title bar option available with `--hide-title-bar`
+- Uses `.icns` icons
+
+### Windows
+
+- Requires specific build tools and redistributables (see bin/README.md)
+- Uses `.ico` icons
+- Supports installer language configuration
+
+### Linux
+
+- Multiple package formats: deb, appimage, rpm
+- Requires specific system dependencies (libwebkit2gtk, etc.)
+- Uses `.png` icons
+
+## Development Workflow
+
+1. **CLI Development**: Modify `bin/defaults.ts` for default options, use `npm run cli:dev` for hot reload
+2. **Core App Development**: Work in `src-tauri/src/`, use `npm run dev` for Tauri development
+3. **Testing**: Build with `--debug` flag for development tools and verbose logging
+4. **Multi-platform**: Test builds on respective platforms or use GitHub Actions
+
+## Branch Management
+
+- `dev` branch: Active development, feature PRs should target this branch
+- `main` branch: Release branch for tags and publishing
+
+## Prerequisites
+
+- Node.js >=16.0.0
+- Rust >=1.78.0 (installed automatically by CLI if missing)
+- Platform-specific build tools (see Tauri prerequisites)