.angular-cli.json5

{
  "apps": [
    {
      /* Keep your actual config here */
    },
    /* Add this second config */
    {
      /* Give it a name for easier use */
      "name": "universal",
      /* Tell the CLI to package for the server */
      "platform": "server",
      "root": "src",
      /* Change the output directory to not mix with browser files, and add it to your .gitignore */
      "outDir": "dist-server",
      /* Server will use a different entry point */
      "main": "main-server.ts",
      /* Server will use a different TypeScript config */
      "tsconfig": "tsconfig.server.json",
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
      /* Delete polyfills, the server does not need them */
      /* Other properties like assets, styles, scripts... can be removed,
       * they are already generated for the browser, so build will be faster */
    }
  ]
}