...Use M-x org-roam-server-mode RET to enable the global mode. It will start a web server. Although it will automatically reload if there is a change in the database, sometimes it fails to establish a connection. If it does not reload after org-roam-build-cache, you can do it manually by clicking the reload button which will reload the data, rebuild the graph and refresh connections. The graph utilizes org-roam protocol which means if you click on one of the nodes, it will open the corresponding file in Emacs. For this feature to work, org-roam protocol should be configured in the system.