@angular/fire/schematics/deploy/schema.json

The official library for Firebase and Angular

{
  "$schema": "http://json-schema.org/draft-07/schema",
  "id": "FirebaseDeploySchema",
  "title": "Firebase Deploy",
  "description": "Ng Deploy target options for Firebase.",
  "properties": {
    "buildTarget": {
      "type": "string",
      "description": "Target to build.",
      "pattern": "^[^:\\s]+:[^:\\s]+(:[^\\s]+)?$"
    },
    "preview": {
      "type": "boolean",
      "description": "Do not deploy the application, just set up the Firebase Function in the project output directory. Can be used for testing the Firebase Function with `firebase serve`."
    }
  }
}