diff --git a/README.md b/README.md
index 805f42c..d315255 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,7 @@ The [archive](archive/) contains development snapshots.
 
 Our [main documentation can be found in
 redmine](https://redmine.ungleich.ch/projects/open-infrastructure/wiki/The_ungleich_kubernetes_infrastructure).
+
+Our [kubernetes applications](apps/) are used for building our own
+services. Attention: the manifests might not be in a stable state. Use
+at your own risk.