How can I use this to start a system container on e.g. AWS?
Note that Sysbox currently requires Ubuntu Linux, because the latest Ubuntu releases use pretty new kernels and carry kernel patches that Sysbox relies on in order to perform some of the OS-virtualization in userland. See this doc for the distros supported by Sysbox:
https://github.com/nestybox/sysbox/blob/master/docs/distro-c...
We are actively working on adding support for more distros.