     <span class="link-text">
              Optional Features
            </span>
          </a>
        </li>
              <li class="toc-item toc-link ">
          <a id="ember213595" class="ember-view" data-test-toc-link="Build targets" href="/v3.6.0/configuring-ember/build-targets">
            <span class="link-text">
              Build targets
            </span>
          </a>
        </li>
              <li class="toc-item toc-link ">
          <a id="ember213596" class="ember-view" data-test-toc-