[mcandre]

The state of Amazon Kindle Collections is beyond broken in 2023.

* Collections fail to appear in the official Amazon Kindle macOS app.
* Searching and sorting are extremely limited in the official Amazon Kindle macOS app, making collection editing tedious.
* Amazon fails to collaborate with Calibre for syncing Calibre virtual libraries as Kindle collections.
* Manual Collections editing from Calibre requires jailbreaking the Kindle.
* The tutorials about Calibre collection plugins reference dead plugins.
* The WhisperSync Web UI fails to provide collection editing for sideloaded books.
* On-device collection editing has multiple corruption errors. Pagination often fails. Repeated attempts to add books to a collection often silently fail. The relevant buttons eventually become invisible. Likely a sign of severe memory corruption issues in Amazon Kindle's (C/C++?) codebase. Books formerly included in a collection, will mysteriously remove themselves from the collection.
* The bulk collection editor fails to persist the desired sorting settings, further slowing down workflows.
* Near 982 books in a collection, the bulk collection editor rapidly fails to add any more books. On reboot, the collection reverts to an earlier state.

As a workaround, one can select a book in the Kindle library and go through the cumbersome, 8-tap workflow of adding the book to a collection.