diff --git a/.devcontainer/README.md b/.devcontainer/README.md
index 4b6257b6fc927..7bf63366996a8 100644
--- a/.devcontainer/README.md
+++ b/.devcontainer/README.md
@@ -35,6 +35,9 @@ Data in the following locations is persisted:
 This is accomplished either via a *volume* or *bind mount* (or *loop device* on
 Codespaces) and is preconfigured.
 
+| **Codespaces: A 'Full Rebuild Container' resets the home directory!**<br>:information_source: This is never necessary unless you want exactly that. |
+|:----------------------------------------------------------------------------------------------------------------------------------------------------|
+
 ## Install pandoc
 
 ### Using cabal