These instructions are tailored towards running the photobooth in a docker container, using a dummy camera and pyqt pdf for printing.
Install docker. (I let you decide how you want to do that ^^)
For linux based hosts, you are fine. For mac based hosts, follow this using XQuartz: https://gist.github.com/sorny/969fe55d85c9b0035b0109a31cbcb088 For windows based hosts, help yourself ;)
You might need to adjust the ENV variable DISPLAY according to your setup.
export DISPLAY=<your_settings|:0>
docker compose up --build--build flag is useful for development :)
Provide a build arg to the docker compose command --build-arg='autostart.sh' or --build-arg='autostart.sh' to choose the start script.
Replace the CMD with CMD ["sleep", "infinity"] for debugging.
As long as there is no proper way to setup a ubuntu docker image with pyqt6, pyqt5 is used, which requires Pillow==9.