Org-roam deadline would be ideal methinks.

emacs.org

@@ -758,10 +758,18 @@ validate the agenda changes.
 )
 #+END_SRC
 
-**** TODO Org-roam testing
+**** TODO Org-roam testing                                       :validation:
+   DEADLINE: <2020-09-11 Fri>
+   :LOGBOOK:
+   CLOCK: [2020-09-07 Mon 10:59]--[2020-09-07 Mon 11:00] =>  0:01
+   :END:
 
 Figure out how the hell to use this thing.
 
+Ref:
+- https://github.com/org-roam/org-roam
+- https://www.orgroam.com/manual/
+
 #+BEGIN_SRC emacs-lisp
 (use-package org-roam
  :after org