ArchiveBox uses WARC as it's backing store:
https://en.wikipedia.org/wiki/Web_ARChive
which is nice because it's standardized.
We were discussing integrating Polar web archives along with ArchiveBox and maybe having some sort of standard to automatically submit these WARCs to the Internet Archive as part of your normal browsing activity.
Polar has a similar web capture feature but it's not WARC
(yet)...
WARC is probably the easiest standard for Polar to adopt. Right now we use HTML encoded in JSON objects.
When the user captures a web page we save all resources and store them in a PHZ file which you can keep as your own personal web archive.
What I'd like to eventually do is update our extension to auto-capture web pages so you could use Polar's cloud storage feature to basically store every page you've ever visited.
It really wouldn't be that much money per year. I did the math and it's about $50 per year to store your entire web history.
If I can get Polar over to WARC that would mean that tools like ArchiveBox and Polar could interop but we could do things like automatically send your documents you browse to the Internet Archive.
There's one huge problem though. What do we do about cookies and private data. I'm really not sure what to do there. It might be possible to strip this data for certain sites (news) without any risk of violating the users privacy.