Changing Ports for Handbrake Docker Compose

Hi!

Novice who has just started deploying OMV for a media server, and wants to use the same box to also rip and encode blu rays:

I have successfully deployed OMV, set up OMV extras, and set up docker compose for containers.

I have deployed make MKV as a container by directly copying this: https://github.com/jlesage/docker-makemkv

I now need to deploy Handbrake to encode the files into something that can be read by devices on my network that aren't using VNC. Per this: https://github.com/jlesage/docker-handbrake, I noticed the ports were the exact same as make MKV (5800). I'm assuming that would cause a problem, so during the install, I changed the ports on the docker compose to 5900. However, when I put that into the web browser, I don't get the GUI for handbrake.

I'm assuming I missed something here; is there anyone who can advise on what I possibly missed? Thank you in advance

Oop! nope; I changed them both. Let me try again and only change the left side; one moment

Update: that worked. Thank you very much!

Very informative, thank you. This will help me apply this knowledge to other containers as well. I've got MakeMKV and Handbrake both running and accessible now on the desired ports

Definitely book marking these for additional reading. Thank you!