diff --git a/os-trog.sh b/os-trog.sh
new file mode 100644
index 0000000..d145422
--- /dev/null
+++ b/os-trog.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+# Run this in a terminal in the troggle directory: 'bash os-trog.sh'
+echo 'Run this in a terminal in the troggle directory: "bash venv-trog.sh"'
+
+# Expects an Ubuntu 22.04 relatively clean install.
+
+
+python --version : ensure python is an alias for python3 not python2.7
+sudo apt update
+sudo apt dist-upgrade
+sudo apt install sqlite3
+sudo apt install python3-pip  # this installs a shed-load of other stuff: binutils etc.
+
+
+# On a clean debian 11 (bullseye) installation with Xfce & ssh, 
+# as debian does not install everything that ubuntu does, you need:
+sudo usermod -a -G sudo expo # to put expo in sudoers group, re-login required
+sudo apt install python3.10
+sudo apt install python3.10-venv
+sudo apt install python3.10-dev
+sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.10 1
+
+sudo apt -y install mariadb-server
+sudo apt install libmariadb-dev
+
+sudo python -m pip install --upgrade pip
+
+# Go to https://expo.survex.com/handbook/troggle/troglaptop.html#dbtools
+# sudo service mysql start
diff --git a/requirements-p10d3.txt b/requirements-p10d3.txt
new file mode 100644
index 0000000..82024e9
--- /dev/null
+++ b/requirements-p10d3.txt
@@ -0,0 +1,13 @@
+asgiref==3.3.4
+confusable-homoglyphs==3.2.0
+coverage==5.5
+Django==3.2
+docutils==0.14
+gunicorn==20.1.0
+mariadb==1.0.11
+Pillow==9.0.1
+pytz==2019.1
+reportlab==3.6.8
+sqlparse==0.2.4
+typing-extensions==3.7.4.3
+Unidecode==1.0.23
diff --git a/requirements.txt b/requirements.txt
index ff5b804..d774a94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,3 +10,4 @@ reportlab==3.6.8
 sqlparse==0.2.4
 typing-extensions==3.7.4.3
 Unidecode==1.0.23
+mariadb
diff --git a/venv-trog.sh b/venv-trog.sh
index 7c10473..0439008 100644
--- a/venv-trog.sh
+++ b/venv-trog.sh
@@ -2,17 +2,19 @@
 # Run this in a terminal in the troggle directory: 'bash venv-trog.sh'
 echo 'Run this in a terminal in the troggle directory: "bash venv-trog.sh"'
 
-# Expects an Ubuntu 20.04 relatively clean install.
-# Running using SQLite 3.31.1 2020-01-27 19:55:54
+# Expects an Ubuntu 22.04 relatively clean install.
+# Running using SQLite version 3.37.2 2022-01-06 13:25:41
 # Many permissions conflicts under WSL2 mean more sudo needed
 
 # If you have not already installed these on your clean Ubuntu install DO THIS FIRST
-# /usr/bin/python --version : ensure python is an alias for python3 not python2.7
+# use the script os-trog.sh
+
+# python --version : ensure python is an alias for python3 not python2.7
 # sudo apt install sqlite3
 # sudo apt install python3-pip  # this installs a shed-load of other stuff: binutils etc.
-# sudo apt install python3.9
-# sudo apt install python3.9-venv
-# sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1
+# sudo apt install python3.10
+# sudo apt install python3.10-venv
+# sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.10 1
 
 # on WSL there is an oddity that creating a venv trips over a PowerShell permissions issue
 
@@ -30,7 +32,7 @@ echo 'Run this in a terminal in the troggle directory: "bash venv-trog.sh"'
 #
 
 # copy this file and requirements.txt into the directory above where you want to install the VENV
-VENAME=p310 # python3.10 and django 3.2
+VENAME=p10d3 # python3.10 and django 3.2
 
 if [ -d requirements.txt ]; then
   echo "No requirements.txt found. Copy it from your most recent installation."