Because SQLite has no network or IPC overhead, modern servers go a long way on one node. Hetzner Cloud offers up to 48 dedicated vCPUs with 192 GB RAM; other clouds offer up to 256 vCPUs; bare metal gives direct access to extremely fast NVMe SSDs. Wrona's team currently runs on a 16 shared-vCPU Hetzner server handling a few hundred daily users with plenty of headroom. When vertical scaling hits its ceiling, libSQL embedded replicas are the next step.