CHAPS (Configuration Hardening Assessment PowerShell Scripts) is a security assessment toolkit designed for Windows systems where additional assessment software cannot be installed. It consists of three script variants (PowerShell v3+, PowerShell v2, and CMD batch) that perform 63 security checks across System Info, Security, Authentication, Network, PowerShell, and Logging categories. All scripts output results in Markdown format to stdout. The companion analysis tool (chaps-analyze.ps1) processes these reports to produce structured findings with recommendations, risk explanations, and MITRE ATT&CK mappings using a JSON knowledge base. The toolkit is specifically designed for ICS/OT environments, air-gapped systems, and locked-down Windows installations where traditional security assessment tools cannot be deployed.
WinDynamicDesktop is a Windows desktop application that replicates the macOS Mojave Dynamic Desktop feature, automatically changing the desktop wallpaper based on the time of day. Built with WinForms and .NET, it determines sunrise/sunset times using the device's location (via Windows location service or a geocoding API) and supports multiple monitors, lock screen synchronization, theme importing (from ZIP, JSON, or .ddw files), and localized translations across 50+ languages. The architecture includes a platform abstraction layer (DesktopHelper/UwpHelper for standard and UWP deployments), COM wrappers for wallpaper and power settings, SkiaSharp-based theme preview rendering, and an event-driven scheduler that responds to system events. It also features a PowerShell scripting interface for advanced customization, automatic updates via GitHub releases, and a config migration system for backward compatibility. The codebase is well-structured with clear separation of concerns, though it relies on external APIs (LocationIQ, POEditor) and Windows-specific COM interfaces, which introduce maintenance risk. The repository includes unit tests (sunrise calculations, system integration), CI/CD pipelines, and packaging scripts for installer and store distribution.