docs: Revamp README and add architecture documentation

2025-08-02 20:00:38 -06:00
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+# Architecture Overview
+
+This document details the technical architecture and implementation specifics of the Modern Dotfiles Management System.
+
+## 🏗️ System Structure
+
+The core components of the dotfiles system are organized as follows:
+
+```
+~/.dotfiles/
+├── install.sh              # Main installation script
+├── sync.sh                  # Auto-sync with git repository
+├── reset.sh                 # Reset to vanilla state
+├── machine-profiles.yaml   # Machine type definitions
+├── packages.yaml           # Package definitions
+├── bash/                   # Bash-specific configurations
+├── zsh/                    # Zsh-specific configurations
+├── shared/                 # Universal configurations
+├── git/                    # Git configuration
+├── vim/                    # Vim configuration
+├── lib/                    # Core libraries
+└── docs/                   # Documentation
+```
+
+## 🤖 Machine Profiles
+
+The system automatically detects and configures based on machine type using a scoring algorithm:
+
+### Server Profile
+- **Purpose**: Minimal server setup
+- **Packages**: `curl`, `git`, `vim`, `sshuttle`, `ripgrep`, `fd`
+- **Use Case**: Production servers, minimal VMs
+- **Auto-detection**: SSH connections, systemd services, no GUI
+
+### Development Profile
+- **Purpose**: Full development environment
+- **Packages**: All tools including Claude AI, Gemini CLI, Docker, modern CLI tools
+- **Use Case**: Primary development machines
+- **Auto-detection**: Code editors, development directories, Node.js/Python
+
+### Development Lite Profile
+- **Purpose**: Development without heavy packages
+- **Packages**: Development tools but no Docker/containers
+- **Use Case**: Lightweight VMs, resource-constrained machines
+- **Auto-detection**: Development tools present but limited resources
+
+### Personal Profile
+- **Purpose**: Personal machines with all conveniences
+- **Packages**: Everything including task management tools
+- **Use Case**: Personal laptops, home workstations
+- **Auto-detection**: Personal directories, browsers, GUI environment
+
+### Minimal Profile
+- **Purpose**: Absolute bare bones
+- **Packages**: `curl`, `git`, `vim` only
+- **Use Case**: Emergency access, extremely limited environments
+
+## 🔧 Technical Implementation
+
+### Profile Detection Algorithm
+The system uses a scoring algorithm to detect machine type:
+
+```bash
+# Server indicators (weight)
+- systemd active (30 points)
+- SSH connection (25 points)
+- Multi-user target (20 points)
+- No logged users (10 points)
+
+# Development indicators
+- Development tools present (30 points)
+- Code editor available (25 points)
+- Dev directories exist (20 points)
+- GUI environment (15 points)
+
+# Personal indicators
+- Personal directories (20 points)
+- Browser available (25 points)
+- Personal home path (15 points)
+```
+
+### Update Checking Strategy
+```bash
+# Fast check methods
+npm outdated -g --json      # No installs, just version comparison
+GitHub API calls            # Latest release info
+Local version parsing       # Current installed versions
+
+# Selective updates
+Only outdated packages      # Skip up-to-date ones
+Profile filtering          # Server won't check Claude/Gemini
+Batch operations          # Update multiple efficiently
+```
+
+### Sync Optimization
+```bash
+# Timing controls
+24-hour auto-sync limit    # Prevent excessive git operations
+5-minute manual override   # Allow frequent manual syncing
+Background execution       # Non-blocking terminal startup
+
+# Change detection
+Git fetch + compare        # Check for remote changes
+Local diff detection       # Handle local modifications
+Automatic stash/restore    # Preserve local changes
+```
+
+## 🛡️ Safety Features
+
+### Backup System
+- **Pre-installation backup**: All existing configs saved
+- **Timestamped backups**: Never overwrites previous backups
+- **Symlink detection**: Preserves existing dotfiles setups
+- **Restoration capability**: Can restore original configs
+
+### Reset Capabilities
+- **Soft reset**: Remove dotfiles, restore originals
+- **Hard reset**: Also uninstall packages
+- **Nuclear reset**: Complete removal
+- **Safety prompts**: Confirmation for destructive operations
+
+### Error Handling
+- **Graceful failures**: Continue on non-critical errors
+- **Detailed logging**: All operations logged with timestamps
+- **Rollback capability**: Can undo changes if needed
+- **Dependency checking**: Verify requirements before installation
+
+## 📈 Performance Characteristics
+
+### Startup Time
+- **Cold start**: ~2 seconds (first terminal of day with sync)
+- **Warm start**: ~0.1 seconds (subsequent terminals)
+- **Background sync**: Non-blocking, invisible to user
+
+### Update Efficiency
+- **Traditional approach**: `npm update -g` (30-60 seconds)
+- **Smart checking**: `dotupdatecheck` (2-5 seconds)
+- **Selective updates**: Only outdated packages (10-20 seconds)
+
+### Resource Usage
+- **Memory footprint**: Minimal (shell functions only)
+- **Disk usage**: ~50MB for full dev profile
+- **Network usage**: Efficient API calls, cached results