mio-ops/hardware/linode_vm.nix

# Configuration common to all my Linode VMs
{
  config,
  pkgs,
  lib,
  ...
}: {
  imports = [
    # Import the NixOS Qemu guest settings
    <nixpkgs/nixos/modules/profiles/qemu-guest.nix>
  ];

  boot.initrd.availableKernelModules = ["virtio_pci" "ahci" "sd_mod"];
  boot.initrd.kernelModules = [];
  boot.kernelModules = [];
  boot.extraModulePackages = [];
  boot.kernelParams = ["console=ttyS0,19200n8"];
  boot.loader = {
    grub = {
      extraConfig = ''
        serial --speed=19200 --unit=0 --word=8 --parity=no --stop=1;
        terminal_input serial;
        terminal_output serial
      '';
      device = "nodev";
    };
    timeout = 10;
  };

  # File systems configuration for the Linode VMs
  fileSystems."/" = {
    device = "/dev/sda";
    fsType = "ext4";
  };

  swapDevices = [{device = "/dev/sdb";}];

  nix.maxJobs = lib.mkDefault 4;
}