This script loops through all notes in your bear database and checks which
other notes reference it. The notes referencing this note are listed under
## Backlinks. Each run replaces all backlinks already present in the note.
I believe looping through all notes is necessary to account for links that have been removed. I have not tested how well this works on large collections of notes.
This script does not update the notes directly in the database. It only reads the notes and the links from your database, and uses Bear's x-callback-url to update the note text.
Change the backlinks_header to the name of the section you want to use.
This script can be used with the standard Python 2.7 on macOS.