NixOS on a MinnowBoard MAX and Turbot (serial console)
TL;DR To boot and get a serial console add "console=ttyS0" to your kernel boot arguments via boot.kernelParams = [ "console=ttyS0" ];. The MinnowBoard is an x86 based developer board, similar to the Raspberry Pi or the BeagleBone Black. It comes in multiple versions like the MinnowBoard MAX and the newer MinnowBoard Turbot. They are both compatible to each other and these instructions work for both of them. Check out the Getting Started Guide on minnowboard.