diff --git a/vars/local_vars_big.yml b/vars/local_vars_big.yml
index da202a8ac..330e25c4c 100644
--- a/vars/local_vars_big.yml
+++ b/vars/local_vars_big.yml
@@ -4,6 +4,9 @@
 # PLZ READ http://wiki.laptop.org/go/IIAB/local_vars.yml AND http://FAQ.IIAB.IO
 # Orig Idea: branch github.com/xsce/xsce-local for your deployment/community
 
+# IIAB does NOT currently support uninstalling apps!  So: if any IIAB app is
+# installed with 'APP_XYZ_install: True' below, do NOT later change that.
+
 
 # Ansible's default timeout for "get_url:" downloads (10 seconds) often fails
 download_timeout: 200