Here’s a form post that goes into it.
Make sure you have analog button enabled on your controller. Go to options. You have to press “Select” (if I recall correctly) in the controller config screen (it should tell you at the top of the screen). Then you select “Steering” and press left/right on the d-pad to select analog/digital steering.
Would Obsidian work for you? The notes are stored locally, and the software uses markup for formatting and stuff. You can get it synced to your phone with Dropbox, OneDrive, etc.