npm install
npm run devThe Studio always runs at http://127.0.0.1:8678. The port is strict: startup fails if 8678 is already in use rather than silently selecting another port.
During local development, the current scenario step is kept in the browser tab. After Vite reloads for a code change, Studio skips the intro and replays that step instead of starting the whole scenario again. Close the tab to start with a fresh session.
To stop every process listening on port 8678:
for pid in $(lsof -tiTCP:8678 -sTCP:LISTEN); do kill "$pid"; done