How to display the main post of a recent topic instead of "No new posts."?

[leovoel]

i've been working on a fork of persona and wanted to know what would i need to change in order to do this:

instead of "No new posts", i'd like to show the main post of the most recent thread in that category, if it exists.

i'm already aware of the hook i need (filter:categories.build), what i really wanted to know was how to get the main post of the most recent thread for all categories, and pass that to the template data so i can render it there.

[leovoel]

actually, derp, nevermind, i see https://github.com/NodeBB/NodeBB/issues/4669 already takes care of this