Luckycharms, a desktop charm with actual rope physics

Field notes

The application models its hanging object as seven point masses with Verlet integration, then updates the clickable region each frame so the overlay remains interactive only around the charm. Its picker contains thirteen charms, while the custom-image path removes backgrounds, crops the subject, and recolors the cord using edge colours and a 4096-bucket histogram. The page also describes tray-based controls, multi-monitor support, offline operation, and no telemetry.