otable properties on the <code>ENV</code> object are:</p>
<ul>
<li><code>EmberENV</code> can be used to define Ember feature flags (see the <a href="../feature-flags/">Feature Flags guide</a>) to be enabled at runtime.</li>
<li><code>APP</code> can be used to pass flags or options to the app's <code>Application</code> instance.</li>
<li><code>environment</code> by default contains which of the build environments was selected at build time (<code>development</code>, <code>test</code>, or <code>production</co