Just bulk fetched all my Kindle books using github.com/treetrum/amazon-kin… and dumped them into Calibre. Screw you, #amazon
GitHub - treetrum/amazon-kindle-bulk-downloader: Designed for downloading your Kindle eBooks in a more automated fashion than is typically permitted, this tool allows you to create backup copies of the books you've already purchased.
Designed for downloading your Kindle eBooks in a more automated fashion than is typically permitted, this tool allows you to create backup copies of the books you've already purchased. - treetr...GitHub