k3s

K3s is a lightweight, certified Kubernetes distribution that delivers a production-ready cluster in a single 100MB binary.

Engineered for Edge and IoT, K3s strips away legacy drivers and alpha features to maintain a footprint under 512MB of RAM. It replaces etcd with SQLite for single-node setups (while supporting external PostgreSQL for HA) and bundles Traefik, Helm, and Flannel into the core process. You get a fully compliant API that boots in seconds, making it the go-to choice for ARM64 clusters and rapid local development.

https://k3s.io