Request for NixOS

Hello,

during the weekend, I received a request from one of our users on IRC channel #turris on Freenode to have NixOS template for LXC.

I was discussing it with Vláďa (@vcunat) and the problem is that currently there is no official build for ARMv7. He said that there is a possibility that in the future, there will be an official build, and I found that we could use community build, but as we don't use community builds, it was just blind shot and it will require a discussion in our team ( https://www.cs.helsinki.fi/u/tmtynkky/nixos-arm/installer/), but he told me that he doesn't recommend it, because if NixOS would do some reconfiguration of their system, so LXC container would need to compile so many things.

However, once we release Turris MOX, it would be great atleast to have LXC image of NixOS for it.