ReLaunchX — Open Source Productivity App

Monochrome Launcher primarily intended for eInk and eBook devices. Can work as a system launcher or a normal app. Includes file manager, text file viewer, editor and some system functionality. It is a fork of https://f-droid.org/packages/com.harasoft.relaunch project rebranded to avoid confusion. Tested on and developed for Onyx Boox Max, but many other e-readers are supported as well. Discussion goes on the forum mobileread.