Mine's called org-mode, but you have to uninstall tetris first...
i also write scientific manuscript drafts with it, as well as whitepapers and the like. And my emacs config, of course, though that's hardly distraction free.
the kitchin group at CMU blogs regularly on how to get the most out of using org to treat LaTeX as an IR, with fairly awesome success: https://kitchingroup.cheme.cmu.edu/blog/category/orgmode/