It seems like plain text has made a comeback among the generation that remembers Notepad and vim. The key thing is the focus on the routine and structure, rather than the choice of app or the styling. I've been putting together a collection of plain text applications:

plain text todo / notes combination [https://jeffhuang.com/productivity_text_file/]

plain text accounting [https://plaintextaccounting.org/]

plain text academic publishing [http://www.sitzextase.de/blog/2017/02/22/plain-text/]

plain text organizer [https://danlucraft.com/blog/2008/04/plain-text-organizer/]

plain text daily diary [https://georgecoghill.wordpress.com/2018/01/01/the-one-line-...]