# Ng build

The command can be used to build a project of type "application" or "library". When used to build a library, a different builder is invoked, and only the ts-config, configuration, and watch options are applied. All other options apply only to building applications.

{% resources %}
  {% Official "https://angular.io/cli/build", "Ng Build - Angular.io" %}
  {% Blog "https://www.youtube.com/watch?v=VB6WuCPDwz0", "Building an Angular project" %}
{% endresources %}