TELEICU/Architecture overview: Difference between revisions

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 Both paths share the same target topology: all hospital PCs become K3s agent nodes, managed from 1–3 cloud-based control plane VMs. Inter-node communication runs over Tailscale.
+== Target topology ==
+<pre>
+{{#mermaid:flowchart TB
+    subgraph CP["Cloud Control Plane (1-3 VMs)"]
+        CP1["CP VM 1<br/>(etcd member)"]
+        CP2["CP VM 2<br/>(etcd member)"]
+        CP3["CP VM 3<br/>(etcd member)"]
+    end
+    subgraph TS["Tailscale Mesh"]
+        CP1 --- TS
+        CP2 --- TS
+        CP3 --- TS
+    end
+    subgraph Sites["Hospital Sites"]
+        direction TB
+        HUB["Hub Site<br/>K3s agent + middleware"]
+        S1["Spoke Site<br/>K3s agent + middleware"]
+        S2["Spoke Site<br/>K3s agent + middleware"]
+        S3["Spoke Site<br/>K3s agent + middleware"]
+    end
+    TS --- HUB
+    TS --- S1
+    TS --- S2
+    TS --- S3
+}}
+</pre>
 == Key design decisions ==