{ extraDirectories
, extraFiles
, username ? throw "need to know the username"
, nixIndexEnabled ? false
, ...
}:

{
  home.persistence."/persist/home/${username}" = {
    directories = [
      # "Downloads" # no.
      "Documents"
      "Music"
      "Pictures"
      "Videos"
      ".gnupg"
      ".ssh"
      ".local"
      ".cache/mesa_shader_cache"
      ".cache/mesa_shader_cache_db"
      # TODO: Move this shit into work user
    ] ++ (if (extraDirectories == null) then [ ] else extraDirectories);
    files = [
      ".gitconfig"
      # ".zsh_history"
    ] ++ (if (extraFiles == null) then [ ] else extraFiles)
    # ++ (if nixIndexEnabled then [ ".cache/nix-index" ] else [])
    ;
    allowOther = true;
  };
}