os/modules/core/boot.nix

{
  config,
  pkgs,
  lib,
  ...
}:
with lib; let
  cfg = config.pub-solar.core;
in {
  options.pub-solar.core.iso-options.enable = mkOption {
    type = types.bool;
    default = false;
    description = "Feature flag for iso builds";
  };

  options.pub-solar.core.disk-encryption-active = mkOption {
    type = types.bool;
    default = true;
    description = "Whether it should be assumed that there is a cryptroot device";
  };

  config = {
    boot = {
      # Enable plymouth for better experience of booting
      plymouth.enable = mkIf (!cfg.lite) (lib.mkDefault true);

      # Mount / luks device in initrd
      # Allow fstrim to work on it.
      # The ! makes this enabled by default
      initrd = mkIf (!cfg.iso-options.enable && cfg.disk-encryption-active) {
        luks.devices."cryptroot" = {
          allowDiscards = true;
        };
      };

      loader.systemd-boot.enable = lib.mkDefault true;

      # Use latest linux kernel by default
      #kernelPackages = lib.mkDefault pkgs.linuxPackages_6_1;
      kernelPackages = let
        linux_6_4_pkg = {
          fetchurl,
          buildLinux,
          ...
        } @ args:
          buildLinux (args
            // rec {
              version = "6.4-rc0";
              modDirVersion = "6.3.0";

              src = fetchurl {
                url = "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/snapshot/linux-master.tar.gz";
                sha256 = "sha256-RpeMCBannCFW/Q0t6ZYtyJlvMdVXnr7HfISJQsnyQBo=";
              };

              kernelPatches = [];

              ignoreConfigErrors = true;

              extraMeta.branch = "6.4";
            }
            // (args.argsOverride or {}));
        linux_6_4 = pkgs.callPackage linux_6_4_pkg {};
      in
        pkgs.recurseIntoAttrs (pkgs.linuxPackagesFor linux_6_4);

      # Support ntfs drives
      supportedFilesystems = ["ntfs"];
    };
  };
}