Forgot to include dependency python3 role. Fixed.

The host_restrictions var should probably be deprecated in favour
of testin the play name var (see python3 role for first
implementation)

.gitmodules

@@ -25,3 +25,6 @@
 [submodule "roles/i3wm"]
 	path = roles/i3wm
 	url = https://codeberg.org/ansible/i3wm.git
+[submodule "roles/python3"]
+	path = roles/python3
+	url = https://codeberg.org/ansible/python3.git

group_vars/all.yml

@@ -51,6 +51,9 @@ aptcachetime: 3600
 
 local_user: "{{ lookup('env', 'USER') }}"
 
-# note, the default host_restrictions: False inside most of my roles
-# must be overridden to True to work outside my own environment
-host_restrictions: true
+# we use "not (host_restrictions | bool) or <some other test>" and want host_restrictions
+# to act like sort of a filter to avoid the "other test" evaluating and failing because
+# the variable it is testing does not exist outside my own environment
+# host_restrictions should thus be False by default so the first part above evaluates
+# to True and thus Ansible will skip the rest of the evaluation and no errors
+host_restrictions: false

local.yml

@@ -1,6 +1,8 @@
 ---
 
-- name: Configure your machine
+# do not remove the string "zhutop" from the name - I use it to identify this play
+# in logic statements in the various roles used by this play
+- name: Academic playbook zhutop
   hosts: all
 
   pre_tasks:
@@ -125,7 +127,6 @@
 #     # - { role: picom,                  become: true, tags: [ picom ] }
 #     # pipe-viewer contains interactive step, needs workaround
 #     - { role: pipe-viewer,            become: true, tags: [ pipe-viewer ] }
-#     - { role: python3,                become: true, tags: [ python3 ] }
 #     - { role: qownnotes,              become: true, tags: [ qownnotes ] }
 #     - { role: R,                      become: true, tags: [ R ] }
 #     - { role: radian,                 become: true, tags: [ radian ] }

roles/python3

@@ -0,0 +1 @@
+Subproject commit 5f70626ebbdfc06033d37bef5b82ea8babbdf301