htmx is focused on hypermedia exchanges in the mode of normal HTML, so client-side stuff is out it does, however, have an extensive event model to hook into, i

htmx is focused on hypermedia exchanges in the mode of normal HTML, so client-side stuff is out it does, however, have an extensive event model to hook into, including pre and post request processing: https://htmx.org/reference/#events https://htmx.org/reference/#events as well as an extensions API: https://htmx.org/extensions/#defining https://htmx.org/extensions/#defining for client side scripting, I think you are talking about hyperscript, which is definitely more speculative than htmx, but I wouldn't call it half baked: a lot of people are using it successfully in production a less-esoteric alternative would be to use alpine.js, which is similarly embedded but uses plain ol' javascript (and offers reactivity as well, hyperscript is more of a pure event-driven language)