From its home page:
<blockquote>
[..] an experimental *(OS) designed to serve as an efficient customizable substrate for modern programming languages. The base language used in our current implementation is _(Scheme), but Sting's core ideas could be incorporated into any reasonable high-level language. The ultimate goal in this project is to build a unified programming environment for parallel and distributed computing. [..]
</blockquote>

<ul class="links">
  <li>_("Home page"|http://www.neci.nj.nec.com/PLS/sting.html).</li>
</ul>