Demos

Four products. Four design systems. One spec.

Each is a working product with its own screens, data that changes when you act, and an ask box for everything the product has no screen for. Those screens are generated as Polyxd documents, rendered in the product's design system, and verified before they show. Everything stays in your browser.

h Material 3 · phone first

Halden

A current account. Ask it to send money, explain a charge, set a budget or freeze the card.

f shadcn/ui · dense desktop

Foundry

A customer-success desk for a SaaS. Renewals, tickets, plan changes and hand-overs, keyboard first.

w GOV.UK Design System · forms and plain words

Wexley Borough Council

A resident's account: permits, council tax, repairs and appeals, as services rather than screens.

q Shopify Polaris · store admin

Quay

A candle brand's store admin. Ask why sales dropped, what's about to sell out, or to refund an order.