public static function after_install() {

		if ( ! is_admin() ) {
			return;
		}

		$already_installed = get_option( '_pum_installed' );

		// Exit if not in admin or the transient doesn't exist
		if ( false === $already_installed ) {
			do_action( 'pum_after_install' );

			update_option( '_pum_installed', true );
		}
	}