{...}: {
  # zsh runtime config (.zshrc, plugins, aliases, prompt) is managed via stow
  # (dotfiles: zsh + shell + starship packages). We only enable zsh at the system
  # level and install the tools the dotfiles expect on PATH.
  flake.nixosModules.zsh = {pkgs, ...}: {
    programs.zsh.enable = true;
    users.defaultUserShell = pkgs.zsh;

    ahmza.stow.packages = ["zsh" "shell" "starship"];

    environment.systemPackages = with pkgs; [
      starship
      fzf
      ripgrep
      fd
      lsd
      lolcat
      zoxide
      bat
      lazygit
      carapace
    ];
  };
}