make the resolution smaller throughout the days while your eyes get tired.

tired_eyes

#!/bin/bash

resolutions=(
    "2560x1600"
    "1920x1200"
    "1920x1080"
    "1600x1200"
    "1680x1050"
    "1280x1024"
    "1440x900"
)

current_hour=$(date +"%H")

if (( current_hour < 11 )); then
    resolution_index=0  # Before 11 AM, use max resolution
else
    resolution_index=$(( (current_hour - 11) / 2 ))
    if (( resolution_index >= ${#resolutions[@]} )); then
        resolution_index=$((${#resolutions[@]} - 1))
    fi
fi

xrandr --output eDP --mode "${resolutions[$resolution_index]}"