That formulation seems deliberately ambiguous.

So what’s the frustration here? That it didn’t have 256Gb? I can’t see it in the photo.

Most apps integrate with reminders in some way, but only import from there. I am also looking for a long time now. The only app that comes to mind is Obsidian with the „Remotely Save“ sync plugin. I use it for notes but you can use obsidian for todo lists.

This is kind of by design since these books are all criticisms of the status quo.

Incremental approach when the task seems too big to grasp. I agree!

Homeassistant helps a lot in that respect.

Have you considered psychological factors? It sounds a bit emotionally charged how you talk about food. Could be an eating disorder maybe? That’s usually about the topic of control. Did you have any life events that coincide with these phases where you can’t eat? Just an idea that you can entertain in parallel to the doctors treatment.