It’s been almost two years since I built my first Raspberry Pi-powered k3s cluster. A lot’s changed! There’s a new node in the cluster and I’ve gone off the deep end switching everything to NixOS. In this post, I’ll talk about the new node and some of the nix options that enable it.

My new Raspberry Pi cluster is a little unstable and pretty limited since the nodes have just 1GB of memory. What the heck could I possibly use this for?

Turns out it’s great at running simple cron jobs. In this case, one that cleans up old torrents on a remote qbittorrent server.

Over the holidays I made a k3s (that’s Kubernetes minus 5) cluster out of Raspberry Pis I had lying around. And while it’s extremely cool, it’s also pretty unstable.

In this post, I’ll outline what this new cluster looks like and go into detail on how I set it up. At the end, I’ll talk a little bit about why I won’t be entrusting it with my most important tasks just yet.