NixOS on ARM/Scaleway C1
NixOS historically had some support[1] to work on Scaleway C1 servers. It may be possible to boot a C1 server using the approach described in Install NixOS on Scaleway X86 Virtual Cloud Server.
At the time of writing (Dec 2017), that servers does not boot the NixOS kernel, although boot the kernel from http://mirror.scaleway.com/kernel/armv7l/4.9.67-mainline-rev1/
It is to be investigated the difference between those kernels.