Fascinating. I just finished implementing this.

https://github.com/comalice/pi-tools contains a 'memory everywhere' module that makes all sessions BM25 vectors, and surfaces a set of memory tools to enable agents to search. You can add a new machine to the mix by registering a 'spoke'. The app runs on the 'hub'. I want to containerize the core app soon.

You can also change which computer is the hub fairly easily.