{ config, lib, pkgs, modulesPath, ... }:

{
  imports =
    [
      (modulesPath + "/profiles/qemu-guest.nix")
    ];

  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ ];
  boot.extraModulePackages = [ ];

  fileSystems."/" =
    {
      device = "none";
      fsType = "tmpfs";
      options = [ "size=2G" "mode=755" ];
    };

  fileSystems."/boot" =
    {
      device = "/dev/disk/by-uuid/89B2-E6A2";
      fsType = "vfat";
    };

  fileSystems."/nix" =
    {
      device = "/dev/disk/by-uuid/19368166-7977-48b9-bc04-8fccaa22195f";
      fsType = "btrfs";
      options = [ "subvol=nix" "compress=zstd" ];
    };

  fileSystems."/persist" =
    {
      device = "/dev/disk/by-uuid/19368166-7977-48b9-bc04-8fccaa22195f";
      fsType = "btrfs";
      neededForBoot = true;
      options = [ "subvol=persist" "compress=zstd" ];
    };

  environment.persistence."/persist" =
    {
      hideMounts = true;
      directories = [
        "/etc/nixos"
        "/var/log"
        "/srv"
      ];
      files = [
        "/etc/machine-id"
        "/etc/ssh/ssh_host_ed25519_key"
        "/etc/ssh/ssh_host_ed25519_key.pub"
        "/etc/ssh/ssh_host_rsa_key"
        "/etc/ssh/ssh_host_rsa_key.pub"
      ];
    };

  swapDevices = [ ];

  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
  # (the default) this is the recommended approach. When using systemd-networkd it's
  # still possible to use this option, but it's recommended to use it in conjunction
  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
  networking.useDHCP = lib.mkDefault true;
  # networking.interfaces.ens3.useDHCP = lib.mkDefault true;

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
}