Let's Build PlanetScale From Scratch: Infrastructure
Summary
The article outlines Homescale, a PlanetScale-inspired home-scale infrastructure project, focusing on separating storage from compute using Ceph-backed persistent storage and Kubernetes as the control plane. It explains a storage-first model with immutable images, writable containers, and point-in-time branches implemented via copy-on-write and snapshots. The piece also covers the architecture components (Ceph RBD, Ceph CSI, Rook) and discusses local and Hetzner deployments, with a plan to add a Postgres adapter and branching workflows in future posts.