Looking at the link you gave does not help much in seeing what DiskerNet does and looks like, neither.

Keeping it simple, I download pages in Markdown adding some metadata (some tags). When I want images or more I use singlefile extension. Add Recoll to the mix and that's all I need.

https://github.com/deathau/markdownload

https://github.com/gildas-lormeau/SingleFile

https://www.lesbonscomptes.com/recoll/pages/index-recoll.htm...