diff --git a/compose.yml b/compose.yml
index c2d3e56..a967789 100644
--- a/compose.yml
+++ b/compose.yml
@@ -76,6 +76,9 @@ frontend:
   relations:
     cert-provider: letsencrypt
 
+## Warnin py3o-fusion is particularly heavy (3 images coming from ubuntu:18.04,
+## with full libreoffice)
+#py3o-fusion:
 
 letsencrypt:
   options: