diff --git a/roles/kalite/tasks/install.yml b/roles/kalite/tasks/install.yml
index 51350ec10..0ebf1b38b 100644
--- a/roles/kalite/tasks/install.yml
+++ b/roles/kalite/tasks/install.yml
@@ -22,9 +22,7 @@
       - python-setuptools    # Provides setuptools-44 on recent OS's (last version compatible with python2)
       - virtualenv           # Drags in 'python3-virtualenv' which in turn drags in 'python3-pip' -- for Ansible module 'pip' when used with 'virtualenv_command: /usr/bin/virtualenv' and 'virtualenv_python: python2.7' -- compare package 'python3-venv' used by roles {calibre-web, jupyterhub, lokole}
     state: present
-  when: (is_debian_11 is defined and is_debian_11) or (is_ubuntu_2204 is defined and is_ubuntu_2204)    # Covers is_raspbian_11 and is_linuxmint_21, and is more future-proof than...
-  #when: not (is_debian_12 or is_ubuntu_2304 or is_ubuntu_2310)
-  # 2020-03-31: Testing for {is_raspbian_9, is_raspbian_10} is not currently nec, as testing for {is_debian_9, is_debian_10} covers that already.
+  when: is_ubuntu_2204 is defined and is_ubuntu_2204    # Also covers is_linuxmint_21
 
 #- name: Install Ubuntu keyrings on Debian
 #  get_url:
@@ -37,8 +35,7 @@
 # use key retrieval from mongodb
 - name: Use scripts/install_python2.sh to install python2 and virtualenv
   command: "{{ iiab_dir }}/scripts/install_python2.sh"
-  when: not ((is_debian_11 is defined and is_debian_11) or (is_ubuntu_2204 is defined and is_ubuntu_2204))    # Also avoids is_raspbian_11 and is_linuxmint_21, and is more future-proof than...
-  #when: is_debian_12 or is_ubuntu_2304 or is_ubuntu_2310
+  when: not (is_ubuntu_2204 is defined and is_ubuntu_2204) and not (is_ubuntu_2404 is defined and is_ubuntu_2404)    # Also avoids is_linuxmint_21 and is_linuxmint_22
 
 - name: Use pip to pin setuptools to 44 in {{ kalite_venv }}    # WAS: if Raspbian/Debian > 10 or Ubuntu > 19
   pip:
@@ -48,9 +45,7 @@
     virtualenv_command: virtualenv    # Traditionally /usr/bin/virtual/env -- but install_python2.sh (for Ubuntu 23.10+) sets up /usr/local/bin/virtualenv
     virtualenv_python: python2.7
     extra_args: "--no-use-pep517 --no-cache-dir --no-python-version-warning"
-  when: not (is_ubuntu_2404 is defined and is_ubuntu_2404)
-  #when: not (is_debian_9 or is_debian_10 or is_ubuntu_16 or is_ubuntu_17 or is_ubuntu_18 or is_ubuntu_19)
-  # long form of (is_debian_11+ or is_ubuntu_20+)
+  when: not (is_ubuntu_2404 is defined and is_ubuntu_2404)    # Also avoids is_linuxmint_22
 
 - name: Use pip to install ka-lite-static to {{ kalite_venv }}
   pip:
@@ -61,11 +56,11 @@
     virtualenv_command: virtualenv
     virtualenv_python: python2.7
     extra_args: "--no-cache-dir"
-  when: not (is_ubuntu_2404 is defined and is_ubuntu_2404)
+  when: not (is_ubuntu_2404 is defined and is_ubuntu_2404)    # Also avoids is_linuxmint_22
 
 - name: Run scripts/install_python2_kalite-venv_u2404.sh if Ubuntu 24.04
   command: bash "{{ iiab_dir }}/scripts/install_python2_kalite-venv_u2404.sh"
-  when: is_ubuntu_2404 is defined and is_ubuntu_2404
+  when: is_ubuntu_2404 is defined and is_ubuntu_2404    # Also covers is_linuxmint_22
 
 - name: "Install from templates: venv wrapper /usr/bin/kalite, unit file /etc/systemd/system/kalite-serve.service"
   template:
diff --git a/scripts/local_facts.fact b/scripts/local_facts.fact
index 24a3f044e..b1e53b885 100755
--- a/scripts/local_facts.fact
+++ b/scripts/local_facts.fact
@@ -89,6 +89,7 @@ case $OS_VER in
     "ubuntu-2310"  | \
     "ubuntu-2404"  | \
     "linuxmint-21" | \
+    "linuxmint-22" | \
     "raspbian-12")
         ;;
     *) echo -e "\n\e[41;1mOS '$OS_VER' IS NOT SUPPORTED. Please read:\e[0m\n\n\e[1mhttps://github.com/iiab/iiab/wiki/IIAB-Platforms\e[0m\n" ; exit 1    # Used by /opt/iiab/iiab/iiab-install
diff --git a/vars/debian-12.yml b/vars/debian-12.yml
index 3b51e4478..d06a61285 100644
--- a/vars/debian-12.yml
+++ b/vars/debian-12.yml
@@ -3,18 +3,3 @@
 is_debuntu: True
 is_debian: True    # Opposite of is_ubuntu for now
 is_debian_12: True
-
-# proxy: squid
-# proxy_user: proxy
-# apache_service: apache2
-# apache_user: www-data
-# smb_service: smbd
-# nmb_service: nmbd
-# systemctl_program: /bin/systemctl
-# mysql_service: mariadb
-# sshd_package: openssh-server
-# sshd_service: ssh
-# systemd_location: /lib/systemd/system
-# php_version: "8.2"
-# postgresql_version: 15
-# python_version: "3.11"
diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 912a83de3..55af7c382 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -788,6 +788,7 @@ is_ubuntu_2204: False
 #is_ubuntu_16: False
 
 is_linuxmint: False    # Subset of is_ubuntu
+is_linuxmint_22: False
 is_linuxmint_21: False
 #is_linuxmint_20: False
 
diff --git a/vars/linuxmint-22.yml b/vars/linuxmint-22.yml
new file mode 100644
index 000000000..53af5a21c
--- /dev/null
+++ b/vars/linuxmint-22.yml
@@ -0,0 +1,7 @@
+# Every is_<OS_VER> 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_ubuntu: True    # Opposite of is_debian for now
+is_ubuntu_2404: True
+is_linuxmint: True
+is_linuxmint_22: True
diff --git a/vars/raspbian-12.yml b/vars/raspbian-12.yml
index 9fa4b1e75..53858b6af 100644
--- a/vars/raspbian-12.yml
+++ b/vars/raspbian-12.yml
@@ -5,18 +5,3 @@ is_debian: True    # Opposite of is_ubuntu for now
 is_debian_12: True
 is_raspbian: True
 is_raspbian_12: True
-
-# proxy: squid
-# proxy_user: proxy
-# apache_service: apache2
-# apache_user: www-data
-# smb_service: smbd
-# nmb_service: nmbd
-# systemctl_program: /bin/systemctl
-# mysql_service: mariadb
-# sshd_package: ssh
-# sshd_service: ssh
-# systemd_location: /lib/systemd/system
-# php_version: "8.2"
-# postgresql_version: 15
-# python_version: "3.11"