Fork the repo. Ship a store.

Seven services, one object. Every call site in the storefront and the admin goes through it, which is why an adapter is a new file rather than a fork.

export interface CommerceServices {
  products:   ProductService;
  carts:      CartService;
  quotes:     QuoteService;
  orders:     OrderService;
  discounts:  DiscountService;
  customers:  CustomerService;
  admin:      AdminService;
}

// one of the seven, in full:
interface ProductService {
  list(pageSize?: number, cursor?: PageCursor | null): Promise<ProductPage>;
  getById(id: string): Promise<Product | null>;
  search(term: string, maxResults?: number): Promise<Product[]>;
  create(product: Product): Promise<void>;
  update(id: string, data: Partial<Product>): Promise<void>;
  delete(id: string): Promise<void>;
  listFeatured(): Promise<Product[]>;
  feature(product: Product): Promise<void>;
  unfeature(featuredId: string): Promise<void>;
}