My mechanical keyboard has all this functionality, built-in. No software. No coding required, as it just remembers your strokes. (Or emulated mouse input via it

My mechanical keyboard has all this functionality, built-in. No software. No coding required, as it just remembers your strokes. (Or emulated mouse input via its mouse input controls.) The same company has a mechanical numpad/calculator that can do the same as this shortcut keypad as well, in about the same package, along with having a calculator and display. These macro pads are all over r/MechanicalKeyboards. Plenty of parts and kits to get you started if you want to make your own.