htmx allows you to access AJAX, CSS Transitions, WebSockets and Server Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext
motivation
Why should only and be able to make HTTP requests?
Why should only click & submit events trigger them?
Why should only GET & POST be available?
Why should you only be able to replace the entire screen?
By removing these arbitrary constraints htmx completes HTML as a hypertext