diff --git a/README.md b/README.md
index c7060fec..30a037d3 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,11 @@
 </div>
 <!-- markdownlint-restore -->
 
+> [!CAUTION]
+> This is Sam's dev fork.
+
+This is quite a weasly sentence, I'm fairly sure that this might work.
+
 This repository collects the [UCL ARC] recommendations for a research software
 project in Python. It contains a template for new Python packages and a
 [website] documenting our recommendations. We've turned on