An _(object-oriented) *(OS) primarily based on _(VMS) with the use of the _(GNU) toolchain, and _(Unix)-style pipes (also using record-oriented pipes, a VMS feature called a "mailbox").

A short feature list:
<ul>
<li>Logical names
<li>Versioning on filenames
<li>Access control lists
<li>Nice entrypoint names for everything
<li>Device names that you can see
<li>Event flags and AST's
<li>Asynchronous I/O
</ul>

<ul class="implementations">
<li>_("Home page"|http://www.o3one.org/).
</ul>