Comment by kylequest

TLDR facts about Docker Sandboxes (based on its install): Uses ContainerD compiled natively for Mac OS and uses Nerdbox for the VMs:

├── bin

│ └── sbx

├── libexec

│ ├── containerd-shim-nerdbox-v1 <- Nerbox integration for ContainerD

│ ├── mkfs.erofs

│ ├── mkfs.ext4

│ ├── nerdbox-kernel-arm64

│ └── nerdbox-rootfs-arm64.erofs

More info about Nerdbox is here https://github.com/containerd/nerdbox