org-mode: once you learn the basics it’s quick to add new tasks, quick to change the timeline, and easy to add recurring tasks. You won’t outgrow it: there is a

org-mode: once you learn the basics it’s quick to add new tasks, quick to change the timeline, and easy to add recurring tasks. You won’t outgrow it: there is a lot of flexibility for adopting to more complex workflows. The negative is that it has a bit of a learning curve.