nixpkgs/nixos/modules/services/x11/window-managers/i3.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.xserver.windowManager.i3;
in
{
options = {
services.xserver.windowManager.i3 = {
enable = mkEnableOption "i3";
configFile = mkOption {
default = null;
type = types.nullOr types.path;
description = ''
Path to the i3 configuration file.
If left at the default value, $HOME/.i3/config will be used.
'';
};
};
};
config = mkIf cfg.enable {
services.xserver.windowManager = {
session = [{
name = "i3";
start = ''
${pkgs.i3}/bin/i3 ${optionalString (cfg.configFile != null)
"-c \"${cfg.configFile}\""
} &
waitPID=$!
'';
}];
};
environment.systemPackages = with pkgs; [ i3 ];
};
}