Setup your python based backend system on Debian Bullseye
Here I wanted to document how to setup a python based backend (here: Odoo, but it could also be for example Django) on a pristine Debian / Ubuntu on
After a new installation of Debian / Ubuntu you need to install a couple of packages to start of with a usable system, we add the following packages via apt-get:
sudo apt-get install chromium, git, qdirstat, make, build-essential, python3
(Qdirstat is not needed always needed but sometimes helpful to have for a shell equivalent you can also use / install ncdu instead.)