Plan 9&#x27;s spiritual successor is Inferno, which is open source.
<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Inferno_%28operating_system%29" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Inferno_%28operating_system%29</a><p>Inferno seems like the obvious choice for the IoT.