Hemingway Editor is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Joplin, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Hemingway Editor and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Hemingway Editor are Zettlr (Free, Open Source), Manuskript (Free, Open Source), Dendron (Free, Open Source) and bibisco (Freemium, Open Source).
SuperNotecard is an intuitive tool that uses notecards to capture and organize your ideas. These virtual notecards can be moved into decks, arranged on the screen, or grouped and categorized with ease.
With Plume Creator, organize your writing projects ! Scenes, notes, characters,... Rich Text editing, full screen editing and multiple projects … Plume Creator gives you an outliner, a distraction-free mode, a note manager and much more!