We started with plain text. Then everything got more complicated, and everything came with its own incrutable DB. Now we've come full circle: todo.txt, calendar.txt, plain text markup documents[^1].
Some things don't need to be more complex than they are.
[^1]: Some people never left simple and straightforward, but it feels like the Eternal September happened, and fewer people stayed with simple, and now it's getting popular again.