alt Hacker NewsWanted to reply to you directly also to increase the chance you see this because I think I had exactly the same intrusive thought as you, and actually built such a cluster recently. Would love to hear what you think: https://x.com/andreer/status/2007509694374691230/photo/1
I think that's amazing, surprisingly physically nice looking, and now you've gone and reminded me that Plan 9 is an option, which is kinda another tangent I didn't need:), but IIRC Plan 9 is really low resource so it might be a good fit (aside it lending itself to distributed computing). Have you written up the build anywhere?