I've just added Linux support to Paperback from @TheQuinbox, and I'd really appreciate feedback from other Linux users. There's currently two issues that I'm aware of: Pressing Alt by itself doesn't open the menu, however shortcuts such as Alt F, Alt T, etc. do work to open the menus. DAISY playback doesn't work. Both installer and portable builds are available for ARM64 and x64 on the downloads page. Edit. I just figured out You can press F10 to access the menu.