[notfed]

I guess this would be neater if it demonstrated multiple pages? Otherwise unclear how it's an improvement from a single html file.

[gildas]

It's a kind of demo of SingleFile and the self-extracting ZIP format [1]. The self-extracting ZIP format is an improvement when you want to archive web pages and read them without relying on an extension. The fact that resources are compressed also considerably reduces archive size.

I agree it would be "great" a complete website in the ZIP. I think this is technically possible, someone just have to code it.

[1] https://github.com/gildas-lormeau/SingleFile#singlefile