I would like to manage all my daily tasks, both those that are beminded and not beeminded, in one system such as todoist or toodledoo, etc. (Not emacs that’s too complicated.) Beeminder will get automatically updated for certain tasks that are completed in this other system.
Simplifying assumptions: All of my beeminder tasks are simple do more tasks.
Agree with @cgamer1 , Todoist works very well for this. I have, for example, various household tasks under one label, all of which feed into a Beeminder goal for “household”. So if I tick any of those off on Todoist, I get +1 against that goal.
Or you can have 1-to-1 connections from goals to Todoist as well, iirc.