host/shell.nix

{ pkgs, ... }: {
  users.defaultUserShell = pkgs.zsh;

  programs.zsh = {
    enable = true;
    ohMyZsh = [ "zsh-syntax-highlighting" "git" "git-auto-fetch" "gh" ];
    autosuggestions = {
      enable = true;
      async = true;
    };
    syntaxHighlighting.enable = true;
  };
}