How to create template tpl under okaycms?

Question

Smarty

In general, there is a ready-made html layout and I need to pull it on okaycms, as I just didn’t look for information, I can’t find anything suitable, all that remains is to look at the default cms template and also try to make my own ....
The essence of the question: am I on the right track or is there other techniques or good material on this topic?