graph {
	graph [rankdir=BT; nodesep=1.0; ranksep=1.0]
	node [shape=box]

	client -- relay [label="HTTPS"]
	client -- relay [label="9P/WS"]
	relay -- shop [label="HTTP\nstatic html"]
	relay --api [label="HTTP\nhtmx frags"]
	relay -- api [label="9P/WS\napi"]
	relay --auth [label="HTTP\nforms"]
	api -- authfs [label="9P/TCP"]
	auth --authfs [label="9P/TCP"]

	subgraph cluster_lan {
		relay, shop, api, auth
		authfs [shape=cylinder]
	}
}