{...}: {
  role.sils = "laptop";
  sils = {
    meta = {
      bootPart = "/dev/disk/by-uuid/4064-2D6C";
      globalDataDir = "/srv";
      hostname = "thinklappi";
      mainDisk = "/dev/disk/by-uuid/68da1329-f5ea-4f2c-a38e-faffaaaa6b5a";
      rootPart = "/dev/disk/by-uuid/6700d662-29a9-4ea5-8ca6-85d42550b3ab";
      system = "x86_64-linux";
    };
  };
  home-manager.backupFileExtension = "backup";
}