diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 4fa2586aa..1239a6489 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -90,7 +90,7 @@ iiab_home_url: /home
 # you'll end up preventing older laptops/phones/tablets (which require 2.4 GHz)
 # from connecting to your IIAB's internal hotspot!  BAD IDEA (:
 #
-# Raspbian req WiFi country since March 2018.  CHANGE IT IN /etc/iiab/local_vars.yml
+# Raspberry Pi OS requires WiFi country -- SET THIS IN /etc/iiab/local_vars.yml
 host_country_code: US
 host_ssid: "Internet in a Box"
 host_wifi_mode: g
@@ -185,7 +185,7 @@ wan_netmask:       # wan_netmask: 255.255.255.0
 wan_gateway:       # wan_gateway: 192.168.1.254
 # If nec wan_nameserver can override ISP-provided DNS servers via dnsmasq:
 # /etc/resolv.conf dictates which backend is used for the machine itself, so
-# 127.0.0.1 means you get dnsmasq (so it works right away on Raspbian) while
+# 127.0.0.1 means you get dnsmasq (so it works right away on RaspiOS) while
 # 127.0.0.53 gives you systemd-networkd (so Ubuntu itself does NOT use this
 # dnsmasq-specified upstream DNS [e.g. wan_nameserver] but its LAN clients do!)
 wan_nameserver:    # wan_nameserver: 192.168.1.254 or 8.8.8.8 or 1.1.1.1
@@ -697,7 +697,7 @@ calibreweb_home: "{{ content_base }}/calibre-web"    # /library/calibre-web
 # Works" ~30 lines below, and https://github.com/iiab/iiab/wiki/IIAB-Platforms
 
 # Wide to narrow (insofar as poss)
-is_debuntu: False    # Covers all 3: Ubuntu, Debian, Raspbian
+is_debuntu: False    # Covers all 3: Ubuntu, Debian, Raspbian (Raspberry Pi OS)
 
 is_ubuntu: False
 is_ubuntu_20: False
@@ -706,12 +706,12 @@ is_ubuntu_18: False
 is_ubuntu_17: False
 is_ubuntu_16: False
 
-is_debian: False    # Covers both: Debian, Raspbian
+is_debian: False    # Covers both: Debian, Raspbian (Raspberry Pi OS)
 is_debian_10: False
 is_debian_9: False
 is_debian_8: False
 
-is_raspbian: False    # Covers RPi HW and non-RPi HW versions of Raspbian
+is_raspbian: False    # Covers both: RPi HW + non-RPi HW versions of Raspbian (Raspberry Pi OS)
 is_raspbian_10: False
 is_raspbian_9: False
 is_raspbian_8: False