diff --git a/workflows/org-custom.el b/workflows/org-custom.el
index 67d9c1d..1a65a6e 100644
--- a/workflows/org-custom.el
+++ b/workflows/org-custom.el
@@ -647,7 +647,8 @@
   :config
   (setq org-roam-ui-sync-theme t
         org-roam-ui-follow t
-        org-roam-ui-update-on-save t))
+        org-roam-ui-update-on-save t
+	org-roam-ui-open-on-start nil))
 
 ;; Bibliography stuff
 (setq bibtex-dialect 'biblatex) ;; Use biblatex instead of bibtex.
@@ -687,10 +688,15 @@
 	     :type git :host github :repo "hasu/emacs-ob-racket"
 	     :files ("*.el" "*.rkt")))
 
+;; Mermaid support, for graphing
+(use-package mermaid-mode)
+(use-package ob-mermaid)
+
 (org-babel-do-load-languages
  'org-babel-load-languages
  '((emacs-lisp . t)
    (racket . t)
+   (mermaid . t)
    ))
 
 ;;; LaTeX configuration