I am not sure what exactly is happening, but I cannot open the files using the docker scripts. It seems like they are not available there.

I I start the container and try to open main.fodt I get:

(venv) mblatt@frau-mahlzahn:~/opm-reference-manual$ lodocker-open-file-and-update parts/main.fodt 
INFO:werkzeug:172.17.0.1 - - [18/Mar/2024 08:50:11] "POST /open-document-and-update HTTP/1.1" 404 -
Failed to open document parts/main.fodt. Status code: 404
(venv) mblatt@frau-mahlzahn:~/opm-reference-manual$ 

Before that I tried to do this with the script lodocker-run-container parts/main.fodt but the file is not found by libreoffice.