This looks amazing! I never adopted any of the frameworks (vue, react, angular, ...) because I think they should only be used for web apps, but not for classic websites. JS for everything frontend-related in my opinion just has too many downsides for an open web (possibly bad SEO for crawlers that don't support javascript, reliance on the users device for rendering)
Htmx might be the perfect tool to stay with classic server-side rendering and still have the "pop" of SPAs.