TLDR Fleetbase Storefront will be available as a Shopify app, essentially allowing you to manage your store from Shopify.

The Shopify integration is currently a work in progress, but will allow you to use all the on-demand and features of Fleetbase & Storefront while allowing you to manage your products, categories etc from Shopify. Your ad-hoc orders will bing through Fleetbase to your agents or drivers giving you the best of both worlds.