# PLACEHOLDER hardware configuration for the Raspberry Pi Zero 2 W.
#
# This file is NOT the real generated config -- it exists only so the host
# evaluates in CI before the Pi is provisioned. The machine will not boot from
# it as-is. On first install, regenerate this file on the device with
#   nixos-generate-config --root /mnt
# and replace this placeholder with the output (commit it). See ../../docs/hosts/pizero2w.md.
#
# Like every hardware-configuration.nix in this repo, this file is excluded from
# the formatter and linters (see the pre-commit/treefmt excludes in flake.nix).
{ modulesPath, ... }:
{
  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];

  nixpkgs.hostPlatform = "aarch64-linux";

  # The Zero 2 W boots from an SD card with a FAT firmware partition and an ext4
  # root. Labels match the conventional sd-image layout; the real generated
  # config will use by-uuid device paths instead.
  fileSystems."/" = {
    device = "/dev/disk/by-label/NIXOS_SD";
    fsType = "ext4";
  };

  fileSystems."/boot/firmware" = {
    device = "/dev/disk/by-label/FIRMWARE";
    fsType = "vfat";
  };

  # 512 MB of RAM and an SD card: no swap partition (SD cards wear out under
  # swap writes). zram takes its place; see ../../hosts/PiZero2W/configuration.nix.
  swapDevices = [ ];
}