Running K3s on a Raspberry Pi has been one of the most rewarding projects I’ve tried in my home lab. The lightweight nature of K3s makes it perfect for a Raspberry Pi cluster, and it allows me to run applications in a way that is both resilient and easy to manage. Over time, I’ve experimented with several different workloads, and some of them have become permanent fixtures in my setup. Here are five of the most useful applications I’ve deployed.