let
  # Default shell
  defaultShell = { lib, pkgs, config, ... }: with lib; {
    environment.shells = with pkgs; [ bash fish ];
    users.users = mkMerge [
      { nki.shell = pkgs.bash; }
      # (mkIf (builtins.hasAttr "natsukagami" config.users.users) { natsukagami.shell = pkgs.fish; })
    ];
  };
in
# Common stuff
{ lib, pkgs, config, ... }:
with lib; {
  imports = [
    # defaultShell
    ./modules/services/nix-cache
  ];

  ## Packages
  # Nix options
  # Always have flakes enabled!
  nix.extraOptions = ''
    experimental-features = nix-command flakes repl-flake
  '';
}