At around end of March, I want to get my hands on the old raspberry pi cluster again as I need a testbed for K8S, ChatOps, CI/CD etc. The DevOps ecosystem in 2023 is more ARM ready compared with 2020 which makes building a usable K8S stack on Pi realistic. I upgraded from a 4 nodes cluster to a 7 Pi4 nodes with POE capabilities, SSD, USB and sitting inside a nice 1U rack. Then spending the next two months’ time on testing various OS. Re-installing the whole stack multiple times and struggling with the home router is fun. At the end the cluster is up with all platform engineering tools deployed.