let
  # pulling this in manually over from module args resolves an infinite recursion.
  # FIXME: instead untangle `//infra/flake-part.nix` and make it stop passing wild functions.
  # move moving towards a portable-services-like pattern where some things are submodules.
  # Right now those wild functions are for parameterising a bunch of things,
  # and the modular way to do that would be options --
  # obviously you can't use those for `imports`,
  # so one way to decouple fixpoints is to isolate them into submodules.
  # Therefore one approach would be to try to go down the call graph,
  # and see where what's currently a function could be a `submodule` field of something else.
  sources = import ../../npins;
in
{
  _class = "nixos";

  imports = [
    "${sources.nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
  ];

  boot = {
    initrd = {
      availableKernelModules = [
        "ata_piix"
        "uhci_hcd"
        "sd_mod"
        "sr_mod"
      ];
      kernelModules = [ "dm-snapshot" ];
    };
  };

  disko.devices.disk.main = {
    device = "/dev/sda";
    type = "disk";

    content = {
      type = "gpt";

      partitions = {
        MBR = {
          priority = 0;
          size = "1M";
          type = "EF02";
        };

        ESP = {
          priority = 1;
          size = "500M";
          type = "EF00";
          content = {
            type = "filesystem";
            format = "vfat";
            mountpoint = "/boot";
          };
        };

        root = {
          priority = 2;
          size = "100%";
          content = {
            type = "filesystem";
            format = "ext4";
            mountpoint = "/";
          };
        };
      };
    };
  };
}