why not separate Git repo for each study
diff --git a/README.md b/README.md
index 9e61fe7..9fd1173 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,10 @@
# Maven Studies (former sandbox)
This repository contains studies on new ideas for Maven:
-it's a replacement for [Maven Sandbox](https://github.com/apache/maven-sandbox)
-with an organization optimized for Git (avoid temporary Git repositories creation, that are not easy to delete at ASF but will be archived).
+it's a replacement for Subversion times' [Maven Sandbox](https://github.com/apache/maven-sandbox)
+with an organization optimized for Git, using orphaned branches instead of directories.
+
+Notice: in the past, it required infra to create a Git repository, but self service was later provided. What remains not self service is Git repository deletion (not even sure it is accepted) or archival.
Each study is managed in a separate [Git orphan branch](https://git-scm.com/docs/git-checkout#git-checkout---orphanltnewbranchgt).
