https://clippings.io/

I've used this before, but never added it to the collection.

https://aramzs.xyz/essays/the-internet-is-a-series-of-webs/

an old (6 years) project that readwise maintained, to export kindle highlights: https://github.com/tristanh/bookcision<br /> via PK

see also: https://clippings.io/