It is not perfect, but it works
I am using a dual dvb-s card.
I used existing config and ran:
docker run -d --name NEWVDR --device=/dev/dvb:/dev/dvb -p 8008:8008 -p 3000:3000 -p 6419:6419 -p 34890:34890 -p 37890:37890 dominicboettger/vdr
Worked for me (OMV 2).
HTH