It's a little more complex than that for any non-trivial layout where some containers do need to talk to other containers, but most don't.

You could also create a network for each pair of containers that need to communicate with one another.

	▲	HumanOstrich 13 minutes ago \| parent [-]
		That would create an excessive amount of bridges in my case. Also this is another trivial suggestion that anyone can find with a quick search or asking an LLM. Not helpful. I'm not sure why people are replying to my comment with solutioning and trivial suggestions. All I did was encourage the thread OP to publish their notes. FWIW I've already been through a lot of options for solving my issue, and I've settled on one for now.