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# nixos-config - My current NixOS configuration
#
# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
# SPDX-License-Identifier: GPL-3.0-or-later
#
# This file is part of my nixos-config.
#
# You should have received a copy of the License along with this program.
# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
{
lib,
config,
pkgs,
...
}: let
cfg = config.soispha.programs.ly;
# HACK: We search for the generate river desktop file, which should exist <2026-03-13>
riverDesktop =
lib.lists.findFirst
(x: lib.strings.hasSuffix "river.desktop" x)
null
config.home-manager.users.soispha.home.packages;
shellDesktop = pkgs.writeText "zsh.desktop" ''
[Desktop Entry]
Comment=A simple shell session
DesktopNames=null
Exec=zsh
Name=zsh shell
Terminal=true
'';
customSessionsDir =
pkgs.runCommand "custom-sessions" {}
/*
bash
*/
''
mkdir "$out";
cp "${riverDesktop}/share/applications/river.desktop" "$out"
cp "${shellDesktop}" "$out"
'';
in {
options.soispha.programs.ly = {
enable = lib.mkEnableOption "ly";
batteryName = lib.mkOption {
type = lib.types.nullOr lib.types.str;
example = "BAT0";
default = null;
description = "The name of the battery, if null, will not show a batter percentage.";
};
};
config = lib.mkIf cfg.enable {
assertions = [
{
assertion = riverDesktop != null;
message = ''
There seems to be no `river.desktop` file generated. You will not be able to
log-into river without it.
'';
}
];
services.displayManager.ly = {
enable = true;
x11Support = false;
settings = {
battery_id = cfg.batteryName;
# Stop animations after 10 secs.
animation_timeout_sec = 60;
animation = "colormix";
custom_sessions = "${customSessionsDir}";
# Clear the screen before starting up (otherwise error messages might linger on
# it.)
start_cmd = "clear";
# Clear the password on failure.
clear_password = true;
clock = "%c";
hibernate_cmd = "systemctl hibernate";
inactivity_cmd = "systmectl suspend-then-hibernate";
restart_cmd = "reboot";
shutdown_cmd = "shutdown $PLATFORM_SHUTDOWN_ARG now";
sleep_cmd = "systemctl suspend";
inactivity_delay = 30; # unit is seconds
};
};
};
}
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