firebase.json

{
  "database": {
    "rules": "database.rules.json"
  },
  "emulators": {
    "auth": {
      "port": 9099
    },
    "database": {
      "port": 9000
    },
    "ui": {
      "enabled": true
    },
    "singleProjectMode": true
  },
  "functions": [
    {
      "source": "backend",
      "codebase": "default",
      "ignore": [
        "node_modules",
        ".git",
        "firebase-debug.log",
        "firebase-debug.*.log"
      ],
      "predeploy": [
        "npm --prefix \"$RESOURCE_DIR\" run lint",
        "npm --prefix \"$RESOURCE_DIR\" run build"
      ]
    }
  ],
  "hosting": {
    "public": "web/dist",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
    "rewrites": [
      {
        "source": "/trpc/**",
        "function": "trpc",
        "region": "asia-southeast1"
      }
    ]
  }
}