From what I have read, the idea of the Notepads makes a lot of sense. Especially tracking architectural decisions is an interesting approach.
If I though invest all the time to track architectural decisions (related to a project) in notepads, then having the ability to include this content in the project’s git commits is IMO a must.
Project Rules in the .cursor/rules directory are probably a better fit for what you’re looking for, since they’re version controlled by default. They work similarly to Notepads but are specifically designed to be committed to your repo
You can check out more about Project Rules here: Cursor – Welcome to Cursor
Think you, I still don’t get the point of doing something, which cannot be tracked by Git; I am changing laptops and environments regularly, so having something outside of version control and collaboration does not make sense to me.