Replace author name in post with URL?

hi

I’m wanting to basically do what this plugin does: https://www.dagondesign.com/articles/user-bio-popup-plugin-for-wordpress/

… but instead of a popup on click, I want to just create an URL like this:

<a href="https://www.agelupdates.com/<?php the_author_firstname(); ?>-<?php the_author_lastname(); ?>"><?php the_author() ?></a>

Anyone know how to tweak this plugin to do this or know of another plugin that can do it?

cheers
nathan