I ended up doing a similar thing when I was a contractor. Just a really long note file that I'd track everything I was doing.
Relatedly, I find all of the todo/task management apps to be utterly overwhelming for my person tasks. I'm so tired of all of the task apps adding way too much complexity.
All I want is:
* Something that's available on all of my devices.
* Can be ordered by sections
* Triage
* Now
* Today
* Tomorrow
* Soon
* Eventually
* Whenever (when-never)
* Let's me add a task without thinking (default to triage)* Lets me drag-and-drop tasks for ordering