nixos-config/home-manager/wayland/eww/scripts/brightness

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#!/usr/bin/env bash
brightnessctl -me | cut -d, -f4 | tr -d '%'
device=$(brightnessctl -m | head -n 1 | cut -d, -f1)
while true; do
inotifywait /sys/class/backlight/"$device"/brightness &>/dev/null
brightnessctl -me | cut -d, -f4 | tr -d '%'
done