diff --git a/TODO.md b/TODO.md
index ede89b7..5d0caa0 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,6 +1,7 @@
 - add rst support and convert markdown handling to custom parser instead of pandoc
 
 - process source code blocks with tree sitter https://hackage.haskell.org/package/tree-sitter
+    - Alternatively consider skylighting https://hackage.haskell.org/package/skylighting
 
 - minify js and css when copying over instead of just copying