This is indeed how I have read books, recently. I installed an old Kindle app on the PC, and configured it with my Amazon account. I download the books through

This is indeed how I have read books, recently. I installed an old Kindle app on the PC, and configured it with my Amazon account. I download the books through the app, then start Calibre with the deDRM plugin which will find my private key directly in the Kindle directory, and convert the books to epub. I then send them to my Kobo reader via USB.