Ploopy mouse. It has QMK firmware. You can switch or cycle layers with one button, and get a bunch of extra features. I can control volume, paste plain text on

Ploopy mouse. It has QMK firmware. You can switch or cycle layers with one button, and get a bunch of extra features. I can control volume, paste plain text on my Mac, and more. Oh and side buttons mapped to page up/down is incredibly useful too.