There is a third option:

- Save the page as a self-extracting ZIP file, see https://github.com/gildas-lormeau/Polyglot-HTML-ZIP-PNG

GGs on the library

.hmml might be more hassle free then zip options for web apps. With zips, I think it will require more js bundle & processing to work.

meanwhile with .hmml, its already gzip/br compressed in cdns, and decoded natively by the browser