diff --git a/draft/2025-07-30-this-week-in-rust.md b/draft/2025-07-30-this-week-in-rust.md
index e63869f5e..a7587bd5d 100644
--- a/draft/2025-07-30-this-week-in-rust.md
+++ b/draft/2025-07-30-this-week-in-rust.md
@@ -44,6 +44,8 @@ and just ask the editors to select the category.
 
 ### Rust Walkthroughs
 
+* [The Design and Implementation of Extensible Variants for Rust in CGP (Extensible Data Types Part 4)](https://contextgeneric.dev/blog/extensible-datatypes-part-4/)
+
 ### Research
 
 ### Miscellaneous