Layout Paragraphs: How to provide a layout region's sub-twig template?

I am loving this Layout Paragraphs module! I suspect my support question is more of a core Layout API question, but I am honestly a little bit lost between core Layout API, Layout Paragraphs, Paragraphs, and Field/Items when it comes to twig theming.

I have created a custom Layout (Layout API through and through) with some regions, peppered its twig template with `{{ attributes.addClass('what-i-called-it') }}` and `{{ region_attributes.first.addClass('first-region') }}` etc such that it looks good and behaves nicely in the editor (one of the biggest strengths of this module is its UX this provides!), but as part of my layout, I know I will be picking apart user-placed content (paragraphs) in various ways that are best suited for paragraph-field-level twig templates (which is what led me to open 💬 Layout Paragraphs: Twig template suggestions Active ).

Can you provide a quick tip to nudge me in the right direction?