Implements environment-based configuration for Docker Compose, automated Docker Desktop installation for Windows hosts, and RustDesk client setup with custom relay server support as an RDP alternative.

Changes

Environment-based configuration

• .env.example: Template for all configurable parameters (Windows version, credentials, hardware specs, network, storage paths)
• compose.yml: Refactored to use environment variables with defaults: ${VERSION:-11}, ${RAM_SIZE:-4G}, etc.
• .gitignore: Exclude .env and data directories

# compose.yml now supports:
environment:
  VERSION: "${VERSION:-11}"
  USERNAME: "${USERNAME:-Docker}"
  RAM_SIZE: "${RAM_SIZE:-4G}"
  CPU_CORES: "${CPU_CORES:-2}"

Docker Desktop installation script

• install-docker-desktop.ps1: Automates Docker Desktop + WSL2 setup on Windows
  • Version compatibility checks (Build 19041+)
  • WSL2 feature enablement
  • Uses Invoke-WebRequest for modern TLS
  • Silent installation with error handling

RustDesk remote desktop alternative

• install-rustdesk.ps1: Installs RustDesk client with custom relay configuration
  • Custom relay server support: -RelayServer, -ApiServer, -Key parameters
  • TOML config management (prevents duplicates via regex replacement)
  • Service installation for unattended access

# Example: Connect to custom relay
.\install-rustdesk.ps1 -RelayServer "relay.example.com" -Key "pubkey..."

RustDesk provides NAT traversal without VPN, cross-platform support, and self-hosted relay options.

Documentation

• SETUP.md: Comprehensive guide covering environment config, installation scripts, RDP vs RustDesk comparison, security considerations
• readme.md: Added references to new features and RDP alternatives FAQ

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