nixos i3 configuration

configuration.nix

{ config, lib, pkgs, ... }:

{
  services.xserver.windowManager.default = "i3";
  services.xserver.windowManager.i3.enable = true;
  services.xserver.windowManager.i3.configFile = "/etc/i3.conf";
  environment.etc."i3.conf".text = pkgs.callPackage ./i3-config.nix {};
}

i3-config.nix

{ dmenu, i3status }:

''
  # This file has been auto-generated by i3-config-wizard(1).
  # It will not be overwritten, so edit it as you like.
  #
  # Should you change your keyboard layout some time, delete
  # this file and re-run i3-config-wizard(1).
  #

  ...
''