lang/org: add +brain feature

No keybinding yet.

modules/lang/org/contrib/brain.el

@@ -0,0 +1,21 @@
+;;; lang/org/contrib/brain.el -*- lexical-binding: t; -*-
+;;;###if (featurep! +brain)
+
+(use-package! org-brain
+  :defer t
+  :init
+  (setq org-id-track-globally t
+        org-id-locations-file (concat doom-etc-dir "org-id-locations")
+        org-brain-visualize-default-choices 'all
+        org-brain-title-max-length 24
+        org-brain-include-file-entries nil
+        org-brain-file-entries-use-title nil)
+
+  :config
+  (set-evil-initial-state! 'org-brain-visualize-mode 'emacs)
+  (set-popup-rule! "^\\*org-brain" :side 'right :size 1.00 :select t :ttl nil)
+
+  (cl-pushnew '("b" "Brain" plain (function org-brain-goto-end)
+                "* %i%?" :empty-lines 1)
+              org-capture-templates
+              :key #'car :test #'equal))