Hm?
> This guide describes an installation of Infinite Scale based on Ubuntu LTS and docker compose. The underlying hardware of the server can be anything as listed below as long it meets the OS requirements defined in the Software Stack
https://doc.owncloud.com/ocis/next/depl-examples/ubuntu-comp...
The Software Stack section goes on to say it's just needs Docker, Docker Compose, shell access, and sudo.
Ubuntu and sudo are probably only mentioned because the guide walks you through installing docker and docker compose.