# Build the container
podman build ./example/alpine -t boco-alpine

# Make the container bootable. boco injects /boco/init and /boco/exec,
# then packs the rootfs as a qcow2 disk.
boco build qcow2 boco-alpine

# Boot the image using QEMU. The container's CMD runs automatically.
boco boot boco-alpine

# Override the command at runtime (base64-encoded on the kernel cmdline):
boco boot boco-alpine --cmd '/bin/sh'

# Override the command at build time (baked into /boco/exec):
boco build qcow2 boco-alpine --cmd '/bin/sh'

# Cleanup
boco image rm boco-alpine
podman image rm boco-alpine

Kernel

boco boots VMs using a shared kernel at $XDG_DATA_HOME/boco/registry/vmlinuz. Place a suitable x86 bzImage there before running boco boot.