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[ ! -e /root/mysite ] || refuse "/root/mysite already exists; move it away first"
if pkg_installed podman; then
state_set had-podman 1
podman container exists db 2>/dev/null && refuse "a container named db already exists; remove it first (podman rm -f db)"
podman volume exists dbdata 2>/dev/null && refuse "a volume named dbdata already exists; remove it first (podman volume rm dbdata)"
fi
true