org-roam/doc/tour.md

A Tour of Org-Roam

All of this starts from the note. A note is just a simple .org file in the directory. Any org file in the directory is considered part of the org-roam ecosystem. Notes are quickly linked together (and created if necessary) using org-roam-insert.

Org-roam tracks all of these file links, and builds a cache asynchronously in the background. This cache is used to populate the backlinks buffer, which shows files that link to the current file, as well as some preview contents:

These file links also form a graph. The generated graph is navigable in Emacs.