The HTCPCP protocol is built on top of HTTP, with the addition of a
few new methods, header fields and return codes.  All HTCPCP servers
should be referred to with the "coffee:" URI scheme

Htmx creator Carson Gross credits the technology these projects are built on top of for some of their success, noting the contrast between them and other JavaScript frameworks.

“I might encourage minimalism in web development, but only because there's this incredibly complicated piece of software called a browser that has all this infrastructure baked into it that we can sit on top of. We can take advantage of that complexity and the abstraction it provides in a simple way, rather than putting a lot of complexity on top of that,” says Gross. “A lot of JavaScript projects take a browser and heap a bunch of incredibly complicated software on top without taking advantage of the infrastructure that the browser has sitting there.”

One of the reasons front-end libraries like React are so popular is that JavaScript is one of the only ways to add interactivity to a website. Writing pure HTML, developers can only send and receive data in very limited ways and are restricted to reloading entire pages when content changes, rather than just updating smaller parts. Gross sees these as arbitrary constraints that force developers to use JavaScript when HTML should suffice. Htmx is a JavaScript library that enables developers to build interactive components in pure HTML without having to write any JavaScript.

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