A public, read-only page any collector can link from an Instagram bio, a forum signature, or a group chat. If a storefront is how a dealer sells, a showcase is how a collector shows off — the same idea, mirrored for the other half of the user base. Every shared page carries a subtle "Made with Cardboard" footer, so each share quietly points the next collector back to the app.
Same architecture as the dealer storefront: a column-whitelisted Postgres view feeds a Worker-rendered page behind an edge cache. No new backend, near-zero marginal cost per page. Cost and cost-basis are never in the whitelist, full stop — and beyond that, the collector decides whether any value shows at all.
Same data, three different front doors. Each one leads with something different — the total, the identity, or the trend line.
For the collector whose collection is the flex — leads with the total and the grail card.
Rookie-card hunter. Basketball and hockey, mostly. Collecting since 2019.
For the collector whose identity is the flex — leads with who they are, values optional.
For the collector who thinks like an investor and wants the page to prove it.
Every showcase ships locked down. The collector opts in to each layer below — nothing here defaults to public.