Maggie Appleton wrote about bi-directional links and the Xanadu project in her post A short history of bi-directional links where she pointed out that a DigitalGarden would be ideal for internal bi-directional links since they are under ones control. Her initial inspiration of this concept came from Andy Matuschak who pretty much does the same thing I do for my notebook here in a TiddlyWiki:

Anytime Andy links to another one of their notes on the site, it'll pop up as a related note at the bottom of the page.

In a future post I will dig into this as well and show how I use TiddlyWiki to generate files for Hugo to consume.