Before asking my list of questions, first some back ground info:
Since earlier this year I work for a thrift shop-chain. Part of my job (for 2 days/week) is running the PC refurbishment project. When I first joined this project Linux Mint was used to install a new OS on refurbished computers. Trust me, systemd on a P4 is a disaster. But who wants systemd anyway ;) So after a while I came across some nice professional network hardware (Gbit managed switches, several) and using an Intel Core 2 machine I created a local network w/o internet access. I also took the decision to change the OS to Devuan Linux with the MATE DE, as the intended audience/user-base are novice Linux users. To this aim I maintain a local repo of Devuan, updated weekly via a portable HDD drive. In the near future a new fiber-optic internet connection will be activated, but as its speed cannot match what I have now to transfer large chunks of data (sorry, packages ;) ) I'll keep the local repo in use for the time being. But the updating process will need some overhauling, having to log around with heavy USB drives is getting quite tedious now.
So, with the upcoming access to high-speed internet I've obtained permission to connect to the to-be-launched wifi network during the night to update said repo. But I also would like to have a local Funtoo repo on the same machine, equally updated during the night. This means I need at least 2 virtual machines and from reading my way around, it seems Linux Containers may do what I want: run a Funtoo base system, with a pair for virtual machines on top, one running Funtoo and the other Devuan, each updating itself during the night before switching off again. (I'll be writing some scripts for that, but first getting to grips with LXC!) Is this possible, how do I proceed (the replacement server already has a fresh Funtoo 1.2 install on it) and how do I create my own containers as I'm aware there's nothing for Devuan nor the Core2 metal the server runs on (Funtoo only supports Westmere so far, by the looks of it).