High-end E Ink tablet PineNote announced with powerful internals

From the horse's mouth:

"...remember that we are a community of developers first and foremost. If you’re looking to buy a PineNote in the first batch, you must expect to write software for it, not to write notes on it. The software shipping from the factory for the first batch will not be suitable for taking notes, reading e-books, or writing your dissertation. It may not even boot to a graphical environment." https://www.pine64.org/2021/08/15/introducing-the-pinenote/