diff --git a/vars/local_vars_min.yml b/vars/local_vars_min.yml
index bf8f5ccb6..4cd0d0cc5 100644
--- a/vars/local_vars_min.yml
+++ b/vars/local_vars_min.yml
@@ -179,6 +179,7 @@ usb_lib_umask0000_for_kolibri: True
 
 # 6-GENERIC-APPS
 
+# Simple, Self-Hosted Web Radio - from AzuraCast.com
 azuracast_install: False
 azuracast_enabled: False    # This var is currently IGNORED.
 
@@ -194,6 +195,7 @@ jupyterhub_enabled: False
 lokole_install: False
 lokole_enabled: False
 
+# Wikipedia's community editing platform - from MediaWiki.org
 mediawiki_install: False
 mediawiki_enabled: False
 
@@ -232,6 +234,7 @@ wordpress_enabled: False
 kalite_install: True
 kalite_enabled: True
 
+# Successor to KA Lite, for offline-first teaching and learning - from learningequality.org
 kolibri_install: False
 kolibri_enabled: False
 kolibri_language: en    # ar,bg-bg,bn-bd,de,en,es-es,es-419,fa,fr-fr,ff-cm,gu-in,hi-in,it,km,ko,mr,my,nyn,pt-br,sw-tz,te,ur-pk,vi,yo,zh-hans
@@ -282,13 +285,16 @@ transmission_kalite_languages:
 #    then click "Scan content folder for videos" (can take many minutes!)
 # E. READ "KA Lite Administration: What tips & tricks exist?" AT http://FAQ.IIAB.IO
 
+# AWStats, originally known as Advanced Web Statistics - from https://awstats.sourceforge.io
 awstats_install: True
 awstats_enabled: True
 
+# Process supervision tool - from https://mmonit.com/monit/
 # 2020-09-22 WARNING: both vars are IGNORED on Debian 10 due to: iiab/iiab#1849
 monit_install: False
 monit_enabled: False
 
+# Networked resource monitoring/graphing tool - from munin-monitoring.org
 munin_install: False
 munin_enabled: False
 
@@ -297,6 +303,7 @@ munin_enabled: False
 phpmyadmin_install: False
 phpmyadmin_enabled: False
 
+# Network traffic monitor - from https://humdi.net/vnstat/
 vnstat_install: False
 vnstat_enabled: False