I haven’t set up any port forwarding on router. As I was just practicing, I have installed proxmox on an older laptop that is connected (wired) to my router.

On another laptop in the same room, I can access to server and set up VM and then immich.

I followed this video first m.youtube.com/watch?v=kqZNFD0JNBc

And then this to install immich (which is mostly from the docker website and immich website) m.youtube.com/watch?v=Oi5j-ZygALI