diff --git a/scripts/local_facts.fact b/scripts/local_facts.fact
index e5a58cade..de315a741 100755
--- a/scripts/local_facts.fact
+++ b/scripts/local_facts.fact
@@ -52,6 +52,7 @@ OS_VER=$OS-$VERSION_ID
     #"fedora-22"    | \
     #"debian-8"     | \
     #"debian-9"     | \
+    #"debian-10"    | \
     #"ubuntu-16"    | \
     #"ubuntu-17"    | \
     #"ubuntu-18"    | \
@@ -60,16 +61,16 @@ OS_VER=$OS-$VERSION_ID
     #"raspbian-8"   | \
     #"raspbian-9"   | \
 
-# 2020-10-21: Debian 11 (Bullseye) not yet supported but adding this line to
-# its /etc/os-release can help testing this unreleased OS: VERSION_ID="11"
-
 # 2021-06-19: Ubuntu 21.10 (Impish Indri) not yet supported but this
 # unreleased OS can help testing.  For now this means MANUALLY changing
 # php_version: 7.4 to 8.0 in /opt/iiab/iiab/vars/ubuntu-21.yml
 
+# 2020-07-31: Debian 12 (Bookworm) not yet supported but adding this line
+# to its /etc/os-release can help testing this upcoming OS: VERSION_ID="12"
+
 case $OS_VER in
-    "debian-10"    | \
     "debian-11"    | \
+    "debian-12"    | \
     "ubuntu-20"    | \
     "ubuntu-21"    | \
     "linuxmint-20" | \
diff --git a/vars/debian-12.yml b/vars/debian-12.yml
new file mode 100644
index 000000000..4ac59c25d
--- /dev/null
+++ b/vars/debian-12.yml
@@ -0,0 +1,29 @@
+# Every is_<OS> var is initially set to 'False' at the bottom of
+# /opt/iiab/iiab/vars/default_vars.yml -- these 'True' lines override that:
+is_debuntu: True
+is_debian: True    # Opposite of is_ubuntu for now
+is_debian_12: True
+
+# 2019-01-31: These apply if-only-if named_install and/or dhcpd_install are True
+# (This is quite rare now that vars/default_vars.yml sets dnsmasq_install: True)
+dns_service: bind9
+dhcp_service: isc-dhcp-server
+dns_user: bind
+
+proxy: squid
+proxy_user: proxy
+apache_service: apache2
+apache_conf_dir: apache2/sites-available
+apache_user: www-data
+apache_log_dir: /var/log/apache2
+smb_service: smbd
+nmb_service: nmbd
+systemctl_program: /bin/systemctl
+mysql_service: mariadb
+apache_log: /var/log/apache2/access.log
+sshd_package: openssh-server
+sshd_service: ssh
+php_version: 8.0
+postgresql_version: 13
+systemd_location: /lib/systemd/system
+python_ver: 3.9
diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 4d7c53134..2d062ef9d 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -716,6 +716,7 @@ is_linuxmint: False    # Subset of is_ubuntu
 is_linuxmint_20: False
 
 is_debian: False    # Covers both: Debian, Raspberry Pi OS (Raspbian)
+is_debian_12: False
 is_debian_11: False
 is_debian_10: False
 is_debian_9: False