I have my instances of Node-Red running on :<p><pre><code>     1. Home IoT controller
     2. Public-facing webserver
     3. At friend&#x27;s house where my 3d printers are
</code></pre>
And they are all connected together via Tor for networking. Hidden Services are awesome, as they can semantically be treated as a huge ethernet hub (topologically speaking). And Node-Red can command and control other Node-Reds via other plugins.<p>Edit: There&#x27;s 474 different Nodes that Node-Red can use. And one node is node-red-contrib-npm, which exposes <i>any</i> npm module as a node to Node-Red. Which sums that up to about 250,000 nodes. <a href="http:&#x2F;&#x2F;flows.nodered.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;flows.nodered.org&#x2F;</a>