lxc-create -t oci does not work out of the box on Devuan 3 "Bewulf"/Debian 10 "Buster".

1. Install umoci from distribution
2. Install skopeo (Chimaera/Bullseye version) from e.g. http://ftp.de.debian.org/debian/pool/main/s/skopeo/
3. Create /etc/containers/policy.json with

{
  "default": [
    {
      "type": "insecureAcceptAnything"
    }
  ],
  "transports":
    {
      "docker-daemon":
        {
          "": [{"type":"insecureAcceptAnything"}]
        }
    }
}

As Docker is not LXC most containers need some tuning in their config!