firebase.json

{
  "database": {
    "rules": "app/database-rules.json"
  },
  "hosting": {
    "public": "public",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [
      {
        "source": "**",
        "function": "remix"
      }
    ],
    "headers": [
      {
        "source": "/static/**/*.@(js|css|jpg|jpeg|gif|png)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=604800"
          }
        ]
      }
    ]
  },
  "functions": {
    "runtime": "nodejs16",
    "predeploy": [
      "npm i -w functions"
    ]
  },
  "emulators": {
    "auth": {
      "host": "127.0.0.1",
      "port": 9099
    },
    "firestore": {
      "host": "127.0.0.1",
      "port": 8088
    },
    "hosting": {
      "host": "127.0.0.1",
      "port": 3033
    },
    "ui": {
      "enabled": true
    },
    "database": {
      "host": "127.0.0.1",
      "port": 9999
    }
  }
}