Try the README: <a href="https:&#x2F;&#x2F;github.com&#x2F;akkartik&#x2F;mu&#x2F;blob&#x2F;master&#x2F;Readme.md" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;akkartik&#x2F;mu&#x2F;blob&#x2F;master&#x2F;Readme.md</a><p>It&#x27;s a new programming language.<p>edit: The source seems to be structured intentionally in a recommended reading order. See the comment at the top of<p><a href="https:&#x2F;&#x2F;github.com&#x2F;akkartik&#x2F;mu&#x2F;blob&#x2F;master&#x2F;000organization.cc" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;akkartik&#x2F;mu&#x2F;blob&#x2F;master&#x2F;000organization.c...</a><p>Layers of code are filled in as you read down the list of files. It&#x27;s an interesting concept, similar to literate programming. (And FWIW, these source files are C++ code for the compiler, not an example of Mu code.)<p>The author also has a blog post up here: <a href="http:&#x2F;&#x2F;akkartik.name&#x2F;post&#x2F;mu" rel="nofollow">http:&#x2F;&#x2F;akkartik.name&#x2F;post&#x2F;mu</a>