installer-configuration.nix

# largely copied from
# https://github.com/tfc/nixos-offline-installer
{ self, buildDerivation, flakeInputs, config, pkgs, lib, modulesPath, ... }:

{
  imports = [
    "${modulesPath}/installer/cd-dvd/iso-image.nix"
    "${modulesPath}/profiles/all-hardware.nix"
    "${modulesPath}/profiles/base.nix"
    "${modulesPath}/profiles/installation-device.nix"
    "${modulesPath}/installer/cd-dvd/channel.nix"
    "${modulesPath}/installer/tools/tools.nix"
  ];

  nixpkgs.config.allowUnfree = true;
  boot.initrd.kernelModules = [ "wl" ];
  boot.kernelModules = [ "kvm-intel" "wl" ];
  boot.extraModulePackages = [ config.boot.kernelPackages.broadcom_sta ];
  system.stateVersion = "22.11";
  nixpkgs.hostPlatform = "x86_64-linux";

  environment.systemPackages = with pkgs; [ git gcc linuxPackages.perf gdb htop ssh tmux];

  systemd.services.sshd.enable = true;

  isoImage.compressImage = false;
  isoImage.isoBaseName = "nixos-offline-installer";
  isoImage.isoName = "${config.isoImage.isoBaseName}-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}.iso";
  isoImage.makeEfiBootable = true;
  isoImage.makeUsbBootable = true;
  isoImage.volumeID = "NIXOS_ISO";
  # isoImage.storeContents = [
  #   buildDerivation
  # ] ++ flakeInputs;
  # isoImage.includeSystemBuildDependencies = true;
  # actually a lot faster than xz while not being very large
  isoImage.squashfsCompression = "zstd -Xcompression-level 22";
  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # systemd.services.installer = {
  #   description = "Unattended NixOS installer";
  #   wantedBy = [ "multi-user.target" ];
  #   after = [ "getty.target" "nscd.service" ];
  #   conflicts = [ "getty@tty1.service" ];
  #   serviceConfig = {
  #     Type = "oneshot";
  #     RemainAfterExit = "yes";
  #     StandardInput = "tty-force";
  #     StandardOutput = "inherit";
  #     StandardError = "inherit";
  #     TTYReset = "yes";
  #     TTYVHangup = "yes";
  #   };
  #   path = [ "/run/current-system/sw" ];
  #   environment = config.nix.envVars // {
  #     inherit (config.environment.sessionVariables) NIX_PATH;
  #     HOME = "/root";
  #   };
  #   script = ''
  #     # set -euxo pipefail
  #     # If the partitions exist already as-is, parted might error out
  #     # telling that it can't communicate changes to the kernel...
  #     wipefs -fa /dev/sda
  #     parted -s /dev/sda -- mklabel gpt
  #     parted -s /dev/sda -- mkpart primary 1GiB -16GiB
  #     parted -s /dev/sda -- mkpart ESP fat32 1MiB 1GiB
  #     parted -s /dev/sda -- mkpart primary linux-swap -16GiB 100%
  #     parted -s /dev/sda -- set 2 boot on
  #     mkswap -L swap /dev/sda3
  #     swapon /dev/sda3
  #     mkfs.ext4 -F -L nixos /dev/sda1
  #     echo "y" | mkfs.fat -F 32 -n boot /dev/sda2
  #     # wait until labels appear
  #     until [ -e /dev/disk/by-label/nixos ] && [ -e /dev/disk/by-label/boot ]; do sleep 2; done
  #     mount /dev/disk/by-label/nixos /mnt
  #     mkdir -p /mnt/boot
  #     mount /dev/disk/by-label/boot /mnt/boot
  #     mkdir -p /mnt/etc/nixos
  #     cp -r ${self}/* /mnt/etc/nixos
  #     nixos-generate-config --root /mnt
  #
  #     nix build /mnt/etc/nixos#nixosConfigurations.barebone.config.system.build.toplevel --offline -o /out
  #     nixos-install -v --system /out --no-root-passwd --no-channel-copy
  #     reboot
  #   '';
  # };
}