{
  "env": [
    "S3_ACCESS_KEY_ID=...",
    "S3_SECRET_ACCESS_KEY=...",
    "DATABASE_URL=...",
    "SECRET_KEY_BASE=..."
  ],
  "name": "your-app-name",
  "path": "path/to/your/project",
  "release_command": "MIX_ENV=prod mix release --overwrite"
}