mdwiki [0] would probably qualify. Disclaimer, I created+released it in 2013. I always jokingly called it the first true single-page application - as it was a single, offline-capable .html file with all images, icons, styles etc. inlined in the same .html file.

[0]: https://mdwiki.info

The draft doesn't read as a Wikipedia article – e.g. addressing the reader as 'you'.

I don't think WP is the right place for this. It is supposed to be a tertiary source, not a place to promote concepts you want to see established.

Ilograph diagrams can be exported to standalone HTML files (like this example: [0]). Coincidentally, they also have slides (kind of) and clock in at around 560KB.

[0] https://www.ilograph.com/demo/intelligentDocumentProcessing....

https://hyperclay.com/ could be on there I think

Thanks for sharing this! Let me take a look. I was only aware of TiddlyWiki when I first started on Bento.