diff --git a/ansible.cfg b/ansible.cfg
index 4030a931e..deb5328ed 100644
--- a/ansible.cfg
+++ b/ansible.cfg
@@ -5,4 +5,4 @@
 # Disallowed by Ansible 2.11+ -- see https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_2.7.html#using-a-loop-on-a-package-module-via-squash-actions
 #squash_actions = apk, apt, dnf, homebrew, openbsd_pkg, pacman, pkgng, yum, zypper, package
 [defaults]
-interpreter_python=/usr/bin/python3
+interpreter_python=/usr/local/ansible/bin/python3
diff --git a/roles/jupyterhub/tasks/install.yml b/roles/jupyterhub/tasks/install.yml
index 4e23f9ccc..d55fdf696 100644
--- a/roles/jupyterhub/tasks/install.yml
+++ b/roles/jupyterhub/tasks/install.yml
@@ -17,11 +17,11 @@
   shell: df -B1 --output=used / | tail -1
   register: df1
 
-
-- name: "Install package: python3-psutil"
-  package:
-    name: python3-psutil
-    state: present
+# 2025-02-16
+#- name: "Install package: python3-psutil"
+#  package:
+#    name: python3-psutil
+#    state: present
 
 - name: Remove previous virtual environment {{ jupyterhub_venv }}
   file:
@@ -51,7 +51,8 @@
       - jupyterhub
     virtualenv: "{{ jupyterhub_venv }}"    # /opt/iiab/jupyterhub
     virtualenv_site_packages: no
-    virtualenv_command: python3 -m venv --system-site-packages "{{ jupyterhub_venv }}"    # 2021-07-29: This works on RasPiOS 10, Debian 11, Ubuntu 20.04 and Mint 20 -- however if you absolutely must use the older Debian 10 -- you can work around errors "can't find Rust compiler" and "This package requires Rust >=1.41.0" if you (1) revert this line to 'virtualenv_command: virtualenv' AND (2) uncomment the line just below
+    virtualenv_command: python3 -m venv "{{ jupyterhub_venv }}"    # 2025-02-16
+    #virtualenv_command: python3 -m venv --system-site-packages "{{ jupyterhub_venv }}"    # 2021-07-29: This works on RasPiOS 10, Debian 11, Ubuntu 20.04 and Mint 20 -- however if you absolutely must use the older Debian 10 -- you can work around errors "can't find Rust compiler" and "This package requires Rust >=1.41.0" if you (1) revert this line to 'virtualenv_command: virtualenv' AND (2) uncomment the line just below
     #virtualenv_python: python3    # 2021-07-29: Was needed when above line was 'virtualenv_command: virtualenv' (generally for Python 2)
     extra_args: "--no-cache-dir --prefer-binary"    # 2021-11-30, 2022-07-07: The "--pre" flag had earlier been needed, for beta-like pre-releases of JupyterHub 2.0.0
 
@@ -68,7 +69,8 @@
       - ipywidgets
     virtualenv: "{{ jupyterhub_venv }}"
     virtualenv_site_packages: no
-    virtualenv_command: python3 -m venv --system-site-packages "{{ jupyterhub_venv }}"
+    virtualenv_command: python3 -m venv "{{ jupyterhub_venv }}"    # 2025-02-16
+    #virtualenv_command: python3 -m venv --system-site-packages "{{ jupyterhub_venv }}"
     extra_args: "--no-cache-dir --prefer-binary"    # 2023-10-01: Lifesaver when recent wheels (e.g. piwheels.org) are inevitably not yet built!  SEE #3560
 
 - name: "Install from template: {{ jupyterhub_venv }}/etc/jupyterhub/jupyterhub_config.py"