ARWENN

How it was realised

The storefront is React Router 7 on Shopify Hydrogen, deployed to Shopify's edge network and typed end to end with GraphQL code generation. Wiegand von Hartmann's design, full-bleed and quiet, is carried through pixel by pixel; collections, variants and the cash-and-carry logic are tailored to a showroom that sells what is standing on the floor. Editorial content comes from Sanity, transactional mail goes out through Mailgun in the EU, and back-in-stock notices with double opt-in come from our own Laravel back office, like everything else behind the storefront.

The back office at admin.arwenn.com is a Laravel application of our own. It mirrors products, variants, collections and locations from Shopify, groups them into product families and pushes them to the Locafox point of sale, matched by a stable Shopify ID rather than the SKU, so renames and collisions never create duplicates.

Sales from the web shop and the till land in one ledger with numbered, locked documents: invoices and credit notes as PDF and as ZUGFeRD e-invoices, a journal export and the DATEV export that the accountant imports without re-typing. Sales statistics show what sells where, online and in the store.

What sets the back office apart is that it runs the whole trade, not just the shop: B2B customers with their own orders and conditions, supplier orders with restock levels per warehouse, and stock keeping across locations. Back-in-stock alerts, customer reviews with opt-out, withdrawals and backups each have their own screen; sign-in is with passkeys. Shop and back office were built as one system from the first day, which is why a new business with a two-person team can run on them.

What it solved

• A whole business infrastructure before the first sale: shop, till, mail, bookkeeping and the connections between them, built from nothing in one go.
• A bespoke front end on a standard commerce backend, without giving up checkout, payments or the admin the team already knows.
• Two systems of record, shop and point of sale, reconciled into one without anybody re-typing an order.
• German bookkeeping rules inside a shop back office: locked documents, e-invoices, DATEV preparation.
• A sync that is safe to run again: every push is idempotent and every destructive step is an archive, not a delete.