When data longevity is a goal, I would expect it to be open source, such that I have a chance to port it over to Linux or other OSs and also be able to port it to future OS in 50 years or so.
I'm also not sure whether HTML is such a great format. Maybe it's fine for reading the files and content in the future but for interop with other tools, I think sth like text or markdown would be better. Or Org-mode.
I'm also not sure whether HTML is such a great format. Maybe it's fine for reading the files and content in the future but for interop with other tools, I think sth like text or markdown would be better. Or Org-mode.