how do i find this template and where to put it in buddypress

Hey. I'm figuring out buddy press. Doing customization. There's a front.php template that they talk about in this article --> https://bpdevel.wordpress.com/2016/05/24/custom-front-pages-for-your-users-profiles/

I'd like to implement this, but haven't found the template. Can you guys help at all?