I built an open-source About A macOS style photo manager for Windows
Folder-native manifests plus a global SQLite index let you keep originals untouched while getting album features and very fast queries — smart trade-offs for large local libraries. Live Photo pairing/playback, a map view, and GPU-accelerated browsing show real engineering focus; it's not reinventing the genre (digiKam/Lightroom exist), but this is a tidy Photos-to-Windows port with thoughtful implementation details.