There appear to be a number of devs/companies working on additional and alternative clients and apps to accompany the rM, as well as pieces of software that can be run on the rM.
A curated list of projects regarding the reMarkable paper tablet is available on the awesome page of the reHackable group on GitHub.
Here are some examples below:
Desktop clients
- reMarkable Connection Utility (RCU): A (paid) cross-platform client for all-in-one offline management of backups, screenshots, notebooks, templates, wallpaper, and third-party software
- Slithin: A free cross platform management client for backup, notebook, template and screens. With internal tools create and edit notebooks
Template management
Command Line Interfaces
- remt python command line tool.
- maxio rM2svg and exportNotebook scripts.
- reHackable scripts especially repush and repull scripts to send/recieve files to/from the rMarkable.
Launcher for Applications
- Draft is a launcher for programs on the tablet. It can launch the default xochitl software, but also fingerterm, or alternative readers, like Plato (see below).
- Oxide a launcher for programs on the tablet that was based on Draft. It is compatible with draft, but has more built in features.
- remux a launcher for the remarkable that works side by side with your apps.
Terminal for the reMarkable tablet
- Fingerterm is a terminal emulator designed for touch based interaction.
- Yaft yet another framebuffer terminal.