{
  lib,
  pkgs,
  config,
  ...
}:
let
  inherit (lib) mkEnableOption mkIf;

  cfg = config.host.nix;
in
{
  options.host.nix = {
    enable = mkEnableOption "Nix settings strfor host.";
    optimization.enable = mkEnableOption "Nix store optimization.";
  };

  config = mkIf cfg.enable {
    nix = {
      package = pkgs.nix;

      settings = {
        warn-dirty = false;
        experimental-features = [
          "flakes"
          "nix-command"
          "pipe-operators"
        ];
      };

      optimise = mkIf cfg.optimization.enable {
        automatic = true;
      };
    };
  };
}