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Kobo ereaders are integrating with Goodreads alternative StoryGraph
(www.engadget.com)
This is a most excellent place for technology news and articles.
All except for Amazon. You need to have access to your Kindle Serial ID. If you don't have it, or deleted your Amazon account like I did, you're SOL.
Unless there's another way to De-DRM Amazon books thru Calibre that I don't know about.
Used to be easiest on kindle until just a year or 2 ago too.
Best best I'd guess is OCR?