[     217ms] [INFO] socket open @ http://127.0.0.1:3000/_observablehq/client.js:409
[     217ms] [INFO] ↑ {type: hello, path: /use-cases, hash: 24f511aaaafd93f311ef5eb01ae1b135a1b6fe9cc8be7111bdd39877fc6140d0} @ http://127.0.0.1:3000/_observablehq/client.js:561
[     240ms] [INFO] ↓ {type: welcome} @ http://127.0.0.1:3000/_observablehq/client.js:415