@nightwatch/schematics/src/builders/builders.json

Adds Nightwatch to an existing Angular CLI project

{
  "$schema": "../../node_modules/@angular-devkit/architect/src/builders-schema.json",
  "builders": {
    "nightwatch": {
      "implementation": "./nightwatch",
      "schema": "./nightwatch/schema.json",
      "description": "Run Nightwatch tests"
    }
  }
}