Example build and serve commands for building AngularJS app with webpack in Nx

angular.json

...
"build": {
  "builder": "@nrwl/web:build",
  "options": {
    "outputPath": "dist/apps/realworld",
    "index": "apps/realworld/src/index.html",
    "main": "apps/realworld/src/main.ts",
    "polyfills": "apps/realworld/src/polyfills.ts",
    "tsConfig": "apps/realworld/tsconfig.app.json",
    "assets": [
      "apps/realworld/src/favicon.ico",
      "apps/realworld/src/assets"
    ],
    "styles": ["apps/realworld/src/styles.css"],
    "scripts": [],
    "webpackConfig": "apps/realworld/webpack.config",
    "buildLibsFromSource": true
  },
  "configurations": {
    "production": {
      "fileReplacements": [
        {
          "replace": "apps/realworld/src/environments/environment.ts",
          "with": "apps/realworld/src/environments/environment.prod.ts"
        }
      ],
      "optimization": true,
      "outputHashing": "all",
      "sourceMap": false,
      "extractCss": true,
      "namedChunks": false,
      "extractLicenses": true,
      "vendorChunk": false,
      "budgets": [
        {
          "type": "initial",
          "maximumWarning": "2mb",
          "maximumError": "5mb"
        }
      ]
    }
  }
},
"serve": {
  "builder": "@nrwl/web:dev-server",
  "options": {
    "buildTarget": "realworld:build"
  }
},
...