export type DeepPartial<T> = {
  [K in keyof T]?: T[K] extends object
    ? DeepPartial<T[K]>
    : T[K];
};

// Usage
type User = {
  name: string;
  address: {
    city: string;
    zip: number;
  };
};

type PartialUser = DeepPartial<User>;
// {
//   name?: string;
//   address?: {
//     city?: string;
//     zip?: number;
//   };
// }