Swayidle

Swayidle is an idle management daemon for Wayland.

Installation

Install via Home Manager:

❄︎ ~/.config/home-manager/home.nix

services.swayidle.enable = true;

Configuration

Swayidle has a lot of flexibility in its setup, but what is usually done is as follows:

1. Send notification before doing the following
2. Lock screen
3. Turn off the screen (Note that the command may differ among window managers)
4. Suspend the system

❄︎ ~/.config/home-manager/home.nix

services.swayidle =
let
  # Sway
  display = status: "swaymsg 'output * power ${status}'"; \
  # Hyprland
  # display = status: "hyprctl dispatch dpms ${status}";
  # Niri
  # display = status: "${pkgs.niri}/bin/niri msg action power-${status}-monitors";
in
{
  enable = true;
  timeouts = [
    {
      timeout = 15;
      command = "${pkgs.libnotify}/bin/notify-send 'Locking in 5 seconds' -t 5000";
    }
    {
      timeout = 20;
      command = "${pkgs.swaylock}/bin/swaylock --daemonize";
    }
    {
      timeout = 25;
      command = display "off";
      resumeCommand = display "on";
    }
    {
      timeout = 30;
      command = "${pkgs.systemd}/bin/systemctl suspend";
    }
  ];
  events = [
    {
      event = "before-sleep";
      command = display "off";
    }
    {
      event = "before-sleep";
      command = "${pkgs.swaylock}/bin/swaylock --daemonize";
    }
    {
      event = "after-resume";
      command = display "on";
    }
    {
      event = "lock";
      command = display "off";
    }
    {
      event = "unlock";
      command = display "on";
    }
  ];
};