I got my first computer mouse as a gift and quickly fell into the world of cursor eventsâstarting with simple dragâandâdrop logic (mouseDown â movement â delta calculation) but soon running into inconsistencies between movementX/movementY, clientX/clientY, and viewport size changes when nested windows are transformed. After trying to track pixel deltas in a multiâwindow setup, I created a small repo calledâŻkerfuffle to handle the transforms and reâcalculate positions, only to discover that even though the math works out, the mouseâs imprecision still throws off the layout, reminding me of the exacting precision needed in watchmaking.






















