Raspberry Pi4 cluster

Thanks to Moby Dick (Cheers Chris) I'm looking at learning Kubernetes.

Going to do it on Raspberry Pi 4B (6 Way cluster) and looking at chassis options. Any advice would be welcome.

Also looking at Pi4 to do my rocket project, but going QNX for that

Any advice would be welcome

I dont think the libraries are fully up to date for the new pi yet, hearing stories about shit no working.