vusys/laravel-smarty does exactly what you think it will do. That is, if you know what Smarty is. If you don’t know what Smarty is that is unforunate.
Smarty is a templating engine for PHP that has been around since the year 2000. It’s so old it even has a Wikipedia page, and was the first templating engine I used.
This package allows you to use Smarty to its fullest within a Laravel application. It also sits next to Blade, so you can, if you really want, have foo.blade.php next to bar.tpl, though there is no interop between engines.