graph LR B([beam]) -->|root| S0[Supervise] B([beam]) -->|user| S1[Supervise] S0 --> |user|I0[[init]] S0 --> |user|I1[[init]] subgraph namespace0 I0 --> C0[[echo 'Hello']] end subgraph namespace1 I1 --> C1[[echo 'System working?']] end S1 --> C2[[echo 'Seems to be.']]