{
  "name": "livekit-mix",
  "sources": [
    {
      "name": "room_src",
      "type": "livekit",
      "config": {
        "serverUrl": "wss://your-project.livekit.cloud",
        "token": "eyJ...",
        "select": {
          "mediaTypes": ["video", "audio"]
        }
      }
    }
  ],
  "nodes": [
    {
      "name": "mix_video",
      "type": "video_mixer",
      "inputs": [
        "room_src"
      ],
      "config": {
        "canvas": {
          "width": 1280,
          "height": 720,
          "backgroundColor": "#1a1a2e"
        },
        "layout": {
          "mode": "grid",
          "common": {
            "borderRadius": 8
          },
          "grid": {
            "maxColumns": 3,
            "gap": 4,
            "fit": "cover"
          }
        }
      }
    },
    {
      "name": "mix_audio",
      "type": "audio_mixer",
      "inputs": [
        "room_src"
      ],
      "config": {}
    }
  ],
  "sinks": [
    {
      "name": "rtmp_out",
      "type": "rtmp_push",
      "inputs": [
        "mix_video",
        "mix_audio"
      ],
      "config": {
        "urls": [
          "rtmp://live.example.com/app/stream-key"
        ],
        "encoding": {
          "videoCodec": "h264",
          "videoBitrateBps": 2500000
        }
      }
    }
  ],
  "policies": {
    "idleTimeoutSec": 120
  }
}