diff --git a/.gitignore b/.gitignore
index e53bf1c4..bb27c247 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ db.sqlite3
 .Trashes
 
 .idea/
+.env
diff --git a/README.rst b/README.rst
index ac29dcd0..d688368f 100644
--- a/README.rst
+++ b/README.rst
@@ -4,21 +4,26 @@
 django CMS quickstart
 #####################
 
-A Dockerised django CMS project, ready to deploy on `Divio <https://www.divio.com/>`_ or another Docker-based cloud platform, and run locally in Docker on your own machine.
+A dockerised django CMS project, ready to deploy on `Divio <https://www.divio.com/>`_ or another Docker-based cloud
+platform, and run locally in Docker on your own machine.
 
-This version uses Python 3.10 running and the most up-to-date versions of Django 3.2, and django CMS 4.1.0rc1
+This version uses Python 3.11 and the most up-to-date versions of Django 3.2, and django CMS 4.1.0rc3
 
-This project is endorsed by the `django CMS Association <https://www.django-cms.org/en/about-us/>`_. That means that it is officially accepted by the dCA as being in line with our roadmap vision and development/plugin policy. Join us on `Slack <https://www.django-cms.org/slack/>`_ for more information or questions.
+This project is endorsed by the `django CMS Association <https://www.django-cms.org/en/about-us/>`_. That means that it
+is officially accepted by the dCA as being in line with our roadmap vision and development/plugin policy. Join us on
+`Slack <https://www.django-cms.org/slack/>`_ for more information or questions.
 
-The documentation for version 4.1 is still work in progress and - for the time being - can be found here: https://django-cms-docs.readthedocs.io/en/latest/
+The documentation for version 4.1 is still work in progress and - for the time being - can be found here:
+https://django-cms-docs.readthedocs.io/en/latest/
 
 Installation
 ############
 
-You need to have docker installed on your system to run this project.
+You need to have Docker installed on your system to run this project.
 
 - `Install Docker <https://docs.docker.com/engine/install/>`_ here.
-- If you have not used docker in the past, please read this `introduction on docker <https://docs.docker.com/get-started/>`_  here.
+- If you have not used docker in the past, please read this
+  `introduction on docker <https://docs.docker.com/get-started/>`_  here.
 
 Try it
 ######
@@ -38,7 +43,22 @@ Try it
 
 Then open http://django-cms-quickstart.127.0.0.1.nip.io:8000 (or just http://127.0.0.1:8000) in your browser.
 
-Note: Since Compose V2, ``docker-compose`` is now included inside docker. For more information, checkout the `Compose V2 <https://docs.docker.com/compose/cli-command/>`_ Documentation.
+You can stop the server with ``docker compose stop`` without destroying the containers and restart it with
+``docker compose start``.
+
+With ``docker compose down`` the containers are deleted, but the database content is still preserved in the named
+volume ``django-cms-quickstart_postgres-data`` and the media files are stored in the file system in ``data/media``.
+Then you can update the project e. g. by changing the requirements and settings. Finally you can rebuild the web image
+and start the server again:
+
+.. code-block:: bash
+
+  docker compose build web
+  docker compose up -d
+
+
+Note: Since Compose V2, ``docker-compose`` is now included inside docker. For more information, checkout the
+`Compose V2 <https://docs.docker.com/compose/cli-command/>`_ Documentation.
 
 .. inclusion-end-marker-do-not-remove
 
@@ -48,15 +68,16 @@ Customising the project
 This project is ready-to-go without making any changes at all, but also gives you some options.
 
 As-is, it will include a number of useful django CMS plugins and Bootstrap 4 for the frontend. You don't have to use
-these; they're optional. If you don't want to use them, read through the ``settings.py`` and ``requirements.txt`` files to
-see sections that can be removed - in each case, the section is noted with a comment containing the word 'optional'.
+these; they're optional. If you don't want to use them, read through the ``settings.py`` and ``requirements.txt`` files
+to see sections that can be removed - in each case, the section is noted with a comment containing the word 'optional'.
 
 Options are also available for using Postgres/MySQL, uWSGI/Gunicorn/Guvicorn, etc.
 
 Updating requirements
 =====================
 
-The project uses a 2 step approach, freezing all dependencies with pip-tools. Read more about how to handle it here: https://blog.typodrive.com/2020/02/04/always-freeze-requirements-with-pip-compile-to-avoid-unpleasant-surprises/
+The project uses a 2 step approach, freezing all dependencies with pip-tools. Read more about how to handle it here:
+https://blog.typodrive.com/2020/02/04/always-freeze-requirements-with-pip-compile-to-avoid-unpleasant-surprises/
 
 Features
 ########
@@ -66,27 +87,38 @@ Static Files with Whitenoise
 
 This quickstart demo has a cloud-ready static files setup via django-whitenoise.
 
-In the containerized cloud the application is not served by a web server like nginx but directly through uwsgi. django-whitenoise is the glue that's needed to serve static files in your application directly through uwsgi.
+In the containerized cloud the application is not served by a web server like nginx but directly through uwsgi.
+django-whitenoise is the glue that's needed to serve static files in your application directly through uwsgi.
 
-See the django-whitenoise settings in settings.py and the ``quickstart/templates/whitenoise-static-files-demo.html`` demo page template that serves a static file.
+See the django-whitenoise settings in settings.py and the ``quickstart/templates/whitenoise-static-files-demo.html``
+demo page template that serves a static file.
 
 Contribution
 ############
 
-Here is the official django CMS repository: `https://github.com/django-cms/django-cms-quickstart/ <https://github.com/django-cms/django-cms-quickstart/>`_.
+Here is the official django CMS repository:
+`https://github.com/django-cms/django-cms-quickstart/ <https://github.com/django-cms/django-cms-quickstart/>`_.
 
 
 Deployment
 ##########
 
-Note that this is just a demo project to get you started. If you want a full production ready site with all the bells and whistles we recommend you have a look at https://github.com/django-cms/djangocms-template instead.
+Note that this is just a demo project to get you started. If you want a full production ready site with all the bells
+and whistles we recommend you have a look at https://github.com/django-cms/djangocms-template instead.
 
 Env variables
 =============
 
-- to deploy this project in testing mode (recommended) set the environment variable ``DEBUG`` to ``True`` in your hosting environment.
-- For production environment (if ``DEBUG`` is false) django requires you to whitelist the domain. Set the env var ``DOMAIN`` to the host, i.e. ``www.domain.com`` or ``*.domain.com``.
+- to deploy this project in testing mode (recommended) set the environment variable ``DEBUG`` to ``True`` in your
+  hosting environment.
+- For production environment (if ``DEBUG`` is false) django requires you to whitelist the domain. Set the env var
+  ``DOMAIN`` to the host, i.e. ``www.domain.com`` or ``*.domain.com``.
 - If you want the media hosted on S3 set the ``DEFAULT_FILE_STORAGE`` variable accordingly.
+- If you want to access the PostgreSQL database from the host system, set ``DB_PORT`` to the desired port number.
+  5432 is the standard port number. If you run PosgreSQL on your host system, you may want to set another port number.
+  If this variable is empty (the default), the PosgreSQL instance in the container is only reachable within docker, but
+  not from outside.
+
 
 Deployment Commands
 ===================
@@ -99,7 +131,9 @@ Configure your hosting environment to run the following commands on every deploy
 Divio Deployment
 ================
 
-divio.com is a cloud hosting platform optimized for django web applications. It's the quickest way to deploy this project. Here is a `video tutorial <https://www.youtube.com/watch?v=O2g5Wfoyp7Q>`_ and a `description of the deployment steps <https://github.com/django-cms/djangocms-template/blob/mco-standalone/docs/deployment-divio.md#divio-project-setup>`_ that are mostly applicable for this quickstart project.
+divio.com is a cloud hosting platform optimized for django web applications. It's the quickest way to deploy this
+project. Here is a `video tutorial <https://www.youtube.com/watch?v=O2g5Wfoyp7Q>`_ and a
+`description of the deployment steps <https://github.com/django-cms/djangocms-template/blob/mco-standalone/docs/deployment-divio.md#divio-project-setup>`_ that are mostly applicable for this quickstart project.
 
 
 .. |pythonapp| image:: https://github.com/django-cms/django-cms-quickstart/workflows/Python%20application/badge.svg?branch=support/cms-4.1.x
diff --git a/docker-compose.yml b/compose.yaml
similarity index 82%
rename from docker-compose.yml
rename to compose.yaml
index 402f5cbf..83e7d009 100644
--- a/docker-compose.yml
+++ b/compose.yaml
@@ -21,9 +21,9 @@ services:
 
   database_default:
     # Select one of the following db configurations for the database
-    image: postgres:13.5-alpine
+    image: postgres:15-alpine
     ports:
-      - "5432:5432/tcp"  # allow your local dev env to connect to the db
+      - "${DB_PORT-}:5432/tcp"  # allow your local dev env to connect to the db if variable set
     environment:
       POSTGRES_DB: "db"
       POSTGRES_PASSWORD: "password"
@@ -34,7 +34,10 @@ services:
       - djangocmsnet
 
     volumes:
-      - ".:/app:rw"
+       - postgres-data:/var/lib/postgresql/data/
 
 networks:
   djangocmsnet:
+
+volumes:
+  postgres-data:
\ No newline at end of file
diff --git a/requirements.in b/requirements.in
index 3f9a32bd..f30c8759 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,5 +1,5 @@
 # Compile this file for changes to take effect:
-# pip-compile requirements.in >> requirements.txt
+# pip-compile -U --resolver=backtracking
 
 boto3
 psycopg2