@nrwl/angular:webpack-dev-server
The webpack-dev-server executor is very similar to the standard dev server builder provided by the Angular Devkit. It is usually used in tandem with @nrwl/angular:webpack-browser when your Angular application uses a custom webpack configuration.
Options can be configured in project.json when defining the executor, or when invoking it. Read more about how to configure targets and executors here: https://nx.dev/reference/project-configuration#targets.
Seving an application with a custom webpack configuration
This executor should be used along with @nrwl/angular:webpack-browser to serve an application using a custom webpack configuration.
Your project.json file should contain a build and serve target that matches the following:
"build": {
    "executor": "@nrwl/angular:webpack-browser",
    "options": {
        ...
        "customWebpackConfig": {
          "path": "apps/appName/webpack.config.js"
        }
    }
},
"serve": {
    "executor": "@nrwl/angular:webpack-dev-server",
    "configurations": {
        "production": {
            "browserTarget": "appName:build:production"
        },
        "development": {
            "browserTarget": "appName:build:development"
        }
    },
    "defaultConfiguration": "development",
}