Changelog

All notable changes to this NixOS configuration template will be documented in this file.

[Unreleased]

Added

• Deployment Factory Architecture - Unified deployment image generation system
  • Centralized configuration in lib/deployment-images.nix
  • Reduced code duplication by ~400 lines
  • Consistent security and optimization across all deployment targets
  • New lightweight development-minimal image for resource-constrained environments
  • Docker VM builder image for cross-platform NixOS VM creation
• Windows VM Builder - Docker-based NixOS VM builder for Windows users
  • Pre-built VM images available via GitHub releases
  • 5 specialized templates: Desktop, Server, Gaming, Minimal, Development
  • Support for VirtualBox, Hyper-V, VMware, and QEMU formats
  • Comprehensive Windows user documentation
  • Automated GitHub Actions build pipeline
  • No local Nix installation required for Windows users

Changed

• Major Architecture Refactor: Profile-based system eliminating massive code duplication
  • Flake.nix reduced from 1057 to 496 lines (53% reduction)
  • Host configurations reduced by 50-80% through profile system
  • Darwin configuration generator for multi-architecture support
  • Deployment images factory pattern replacing repetitive configurations
• NixOS 26.05+ Compatibility: Fixed all deprecation warnings and modernized configurations
  • Updated isoImage.isoName to image.fileName in macOS ISOs
  • Resolved user password precedence conflicts
  • Fixed option conflicts in deployment images
  • Removed deprecated environment.noXlibs option
• Disk Space Optimizations: Aggressive space-saving measures for deployment images
  • Development images optimized with aggressive garbage collection
  • Documentation disabled in deployment images to reduce size
  • Minimal journaling configuration (50-100MB limits)
  • Automatic Nix store optimization enabled

• Updated README.md to include Windows VM builder section

• Enhanced project structure documentation with Docker components

• Added Windows-specific quick start instructions

Documentation

• Added docs/WINDOWS-HOWTO.md - Complete step-by-step guide for Windows users
• Added docs/WINDOWS-VM-BUILDER.md - Technical Docker implementation details
• Added docker/README.md - Docker-specific documentation
• Updated main README with Windows VM builder features and commands

Infrastructure

• Added GitHub Actions workflow for automated VM image builds
• Added Docker image publishing to GitHub Container Registry
• Added automated release creation with downloadable VM images
• Added comprehensive VM build matrix for all template/format combinations

Previous Releases

Security & Stability Improvements

• Fixed critical NOPASSWD sudo vulnerability in desktop template
• Standardized secrets management on agenix (age encryption)
• Implemented comprehensive security hardening module
• Enhanced hardware detection with robust fallbacks
• Applied performance optimizations with automatic hardware tuning

Expert-Level Features

• Zero-configuration hardware optimization
• Professional security assessment and implementation
• Advanced monitoring and system identification
• Multi-platform deployment image generation
• Comprehensive Home Manager profile system

Note: This template provides cutting-edge NixOS features while maintaining stability and security. All changes are validated through comprehensive CI/CD testing.

For detailed information about any feature, see the corresponding documentation in the docs/ directory.