<a href="https://en.wikipedia.org/wiki/Chicken_(Scheme_implementation)" class="extiw" title="w:Chicken (Scheme implementation)">Chicken</a> 5.0.0 running on <a href="https://en.wikipedia.org/wiki/macOS" class="extiw" title="w:macOS">macOS</a>.
<a href="//commons.wikimedia.org/wiki/User:Ixfd64" title="User:Ixfd64">Ixfd64</a>
<span class="int-own-work" lang="en">Own work</span>