Motorized aim assist system uses a moving mousepad for laser-accurate headshots — a cannibalized GRBL drawing system and computer vision software deliver perfect shots

https://www.tomshardware.com/maker-stem/microcontrollers-projects/motorized-mousepad-aim-assist-system-is-so-slick-that-noobs-swear-theyve-got-skillz-a-cannibalized-grbl-drawing-system-and-computer-vision-software-work-in-harmony