dotfiles/nixos/systems/saw/disko.nix

{
  lib,
  config,
  ...
}: {
  boot.initrd.systemd.enable = true;
  boot.loader.efi = {
    efiSysMountPoint = "/boot";
  };
  boot.loader.grub = {
    devices = ["nodev"];
    efiInstallAsRemovable = true;
    efiSupport = true;
  };

  fileSystems = {
    "/persist".neededForBoot = true;
    "/nix" = lib.mapAttrs (_: lib.mkForce) {
      fsType = "auto";
      device = "/persist/nix";
      options = ["x-initrd.mount" "bind"];
      neededForBoot = true;
    };
  };

  disko.devices = {
    nodev."/tmp" = {
      fsType = "tmpfs";
      mountOptions = [
        "size=256M"
        "mode=755"
        "noexec"
      ];
    };

    nodev."/" = {
      fsType = "tmpfs";
      mountOptions = [
        "size=128M"
        "mode=755"
        "noexec"
      ];
    };

    nodev."/nix" = {
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-SK_hynix_SC311_SATA_128GB_MJ88N52701150940J-part3";
      mountOptions = [
        "X-mount.subdir=nix"
      ];
      preMountHook = ''
        tmpdir=$(mktemp -d)

        mount /dev/disk/by-id/ata-SK_hynix_SC311_SATA_128GB_MJ88N52701150940J-part3 $tmpdir
        mkdir $tmpdir/nix
        umount $tmpdir
      '';
    };

    disk.ssd = {
      device = "/dev/disk/by-id/ata-SK_hynix_SC311_SATA_128GB_MJ88N52701150940J";
      type = "disk";
      content = {
        type = "gpt";
        partitions = {
          ESP = {
            type = "EF00";
            size = "2048M";
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot";
              mountOptions = ["umask=0077"];
            };
          };

          swap = {
            size = "8192M";
            content.type = "swap";
          };

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