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Swayidle Brightness Manager

This tiny Go application is a utility for Hyprland or Sway that get your actual brightness and set it to 10% after X seconds of idle time. The bash script also locks the screen before the system goes to sleep. It is designed to work with swayidle and swaylock.

Features

  • Decreases the screen brightness to 10% after 30 seconds of idle time.
  • Restores the brightness to its original level upon resuming activity.
  • Ensures that the screen is locked before the system goes to sleep.
  • Prevent dimming the screen if the user is watching a video.

Pre-requisites

  • go 1.20 or higher
  • Sway or Hyprland
  • swayidle
  • swaylock
  • brightnessctl
  • playerctl

Service example

[Unit]
Description=Sway Idle Brightness Manager

[Service]
Environment=PATH=/home/YOURUSERNAME/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
ExecStart=/bin/bash %h/.local/bin/agent-brightness-manager.sh
Restart=always

[Install]
WantedBy=default.target