Audience asks about HTMX (initially misheard as 'XHTML'). Ryan is a big fan. Describes it as a lightweight utility library — 'almost like jQuery back in the day' but more integrated into HTML. Works well with Rails because Rails has APIs for loading HTML and injecting it into the page, which is faster than shipping JSON to the client. Says part of HTMX's goal is to make itself redundant over time, the same way jQuery's APIs pushed browsers forward until jQuery was no longer needed.