diff --git a/c/todo.txt b/c/todo.txt
index fd28f78be..3adbbaf3b 100644
--- a/c/todo.txt
+++ b/c/todo.txt
@@ -48,6 +48,8 @@ TOP OF LIST
   - csv example
   - what do these have in common?
 
+* anim ref https://github.com/edi9999/path-extractor
+
 * cump -> one-offs
 
 ! re-valgrind all !