brits

I run Arch with Hyprland, so brightness is whatever I bind it to. Every existing tool I tried had the same flaw: step up by five percent repeatedly and the numbers wander, because the percentage is being rounded against a 0–255 hardware range and the error compounds.

brits fixes the rounding so the steps stay exact. It's a small program that does one thing correctly, which is most of what I want from a keybinding.