{ ... }:
{
  programs.fish = {
    enable = true;
    interactiveShellInit = ''
      set -g fish_greeting ""
      set -gx SSH_AUTH_SOCK "$XDG_RUNTIME_DIR/ssh-agent"
    '';
  };

  xdg.configFile."fish/functions/fish_prompt.fish".source = ./functions/fish_prompt.fish;
}