That isn&#x27;t the case for ActionCable, which will become a dependency of the &#x27;rails&#x27; gem [1]. You&#x27;ll have to unbundle the rails gem in your Gemfile, then require the frameworks you want one-by-one in application.rb<p>[1]: <a href="https:&#x2F;&#x2F;github.com&#x2F;rails&#x2F;rails&#x2F;blob&#x2F;master&#x2F;rails.gemspec#L28" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;rails&#x2F;rails&#x2F;blob&#x2F;master&#x2F;rails.gemspec#L28</a>