Wow, cool. I assume you&#x27;re referring to <a href="https:&#x2F;&#x2F;github.com&#x2F;sctb&#x2F;lumen" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;sctb&#x2F;lumen</a> and <a href="https:&#x2F;&#x2F;common-lisp.net&#x2F;project&#x2F;parenscript&#x2F;" rel="nofollow">https:&#x2F;&#x2F;common-lisp.net&#x2F;project&#x2F;parenscript&#x2F;</a>.<p>Thanks for the info. :)<p>I&#x27;m mildly curious how Lumen and Arc differ.