@samtripoli just search for @samtripoli in accounts using the search tool and follow :). Only videos after you subscribe will show up as they're released. If you want to see the entire archive go directly to his instance with a browser or #peertube app of your choice
https://vid.samtripoli.com/videos/watch/8a4cdabf-ab0a-471f-a3e5-a14f37ea876f