{...}: {
  role.sils = "workstation";
  sils = {
    bootloader = "grub";
    disks.disk = "/dev/disk/by-id/wwn-0x600508b1001c0d733397035f990e3942";
    meta = {
      globalDataDir = "/srv";
      hostname = "hpserver";
      system = "x86_64-linux";
    };
  };
  nixpkgs.overlays = [(self: super: {utillinux = super.util-linux;})];

  home-manager.backupFileExtension = "backup";
  boot.initrd.availableKernelModules = ["ehci_pci" "ata_piix" "uhci_hcd" "hpsa" "usb_storage" "usbhid" "sd_mod"];
}