saga-soft/novelWriter ? reverse-engineered prompt

Build me a simple desktop writing app for novels that feels clean and distraction free. I want to write a book as lots of small text files instead of one huge document, so I can keep chapters, scenes, notes, and comments organized in a clear project view.

It should support a very light markup style for basic formatting, plus a way to add synopsis, metadata, and cross references between parts of the project. The files should stay human readable and easy to use with version control or cloud sync, so I do not have to worry about a locked in format.

Please make it run well on Linux, Windows, and Mac, with a polished editor, a simple sidebar for navigating the novel, and a modern but minimal interface. If you need to check anything, look up current docs online first, then build the best working version you can.