diff --git a/slides.org b/slides.org
index 65b2564..61bffa8 100644
--- a/slides.org
+++ b/slides.org
@@ -65,6 +65,26 @@ invasive topic-wise.
 
 
 * LACKING Slides                                              :export:ignore:
+** Development Notice                                          :B_fullframe:
+:PROPERTIES:
+:BEAMER_env: fullframe
+:END:
+
+N.B.: These slides appear as they were presented at [[https://libreplanet.org/2017][LibrePlanet\nbsp{}2017]] (with
+the exception of this slide).
+
+#+BEGIN_CENTER
+*For up-to-date slides, see:*
+
+*[[https://mikegerwitz.com/talks/sapsf]]*
+#+END_CENTER
+
+#+BEGIN_CENTER
+For the source code to this presentation, see:
+
+https://mikegerwitz.com/projects/sapsf
+#+END_CENTER
+
 ** REHEARSED Introduction / Opening                            :B_fullframe:
 :PROPERTIES:
 :DURATION: 00:01