Cool stuff. Really, though, this is still relying on a rather large runtime library: the physical, data-link, and network-layer drivers.

Now what'd be really awesome to see, would be one of those Operating System guides that shows you how to write an OS kernel, in assembler, that can speak HTTP. Even just limiting yourself to targeting the synthetic hardware of a VM program, it'd still be quite a feat.

Bonus points if the entire network stack has been flattened using the hand-rolled equivalent of stream-fusion. :)