Zoneminder has to be the most difficult software implementation I have ever worked on. The repository for 1.30 has moved, and the package has been modified so I've had to rework the docker so I could make a few changes. Changes have been made to the apache configuration. The package maintainers need to stabilize the packages and not make changes to stable versions. I should be able to update the docker and not have to make changes to accommodate changes to the package implementation.
I've been struggling with the event notifications. I believe there are some issues with the Google FCM server right now. Event notification works, then doesn't while I'm trying to work on the docker. I'll give it a few days and then see if I can successfully update to zmeventnotifications to 1.6. It was working and then stopped. This was my bad. I forwarded port 9000 on my router to the wrong place.
I've started the 1.32 implementation, and as I suspected, it will take me a while to work through the issues. I have it working and can see images live from my cameras, but I can't record events. I'll work on it as I get time.
EDIT: I think I have 1.32 working now. I will do some live testing over the next few days.