I haven’t explicitly recreated a template for an academic venue, but I have recreated a custom template to match and existing PDF. It was pretty straightforward to recreate it as the language and “standard library” (if you could call it that?) is well designed and has excellent documentation.

95% of the layout? Trivial. The last 5%? Much harder. They’ve invested in their very specific latex template.

We probably could have done it but my coauthor is great with latex and figured converting the whole thing was probably easier than dealing with the political headache of making the organisers deal with a different format.