Audience question on image delivery. Strzibny: traditionally you'd use an external registry like Docker Hub — the build is pushed there and servers pull it (Kamal authenticates via a KAMAL_REGISTRY_PASSWORD secret). The new Kamal default instead spins up a local Docker-registry image; then a tunnel is created so the server pulls the image from your laptop. In the demo he used the local registry, so no external registry password was needed in the config.