optiman917

@backpackjs/storefront

The following is guide for migrating a project currently using `@backpackjs/storefront` v1 to use `@backpackjs/storefront` v2 with the new Cart API. It's loosely based off of seven commits made by Nguyen, each addressing a different part of the migration.

@backpackjs/build

## `backpackjs transform` spec (v2)