Myself and a growing number of people I speak to online are waiting for Scrivener to be available in the Play Store (Android) so that we can work with Scrivener on E-Ink devices (like Boox).
There is currently no way to use Scrivener with an E-Ink device to save the eyeballs, which means we are using less optimal word processors until the gap is recognized and addressed by the wise council of elders running Scrivener.