The ID that dies on verification
Shops must check ID. Most digitize this by hoarding license photos โ a filing cabinet of passports waiting for a breach. The machine does it differently: the artist's phone shoots the ID through a signed, single-sitting link; it appears at the desk; the desk taps 'checks out'; the attestation stamps the record โ and the photo is deleted in the same transaction. A 24-hour purge catches strays. What survives is the fact of the check, which is all the release ever needed. We never store licenses is a sentence a shop can say to customers and mean.
Share links are credentials
Every link the machine hands out โ a customer's ticket, an artist's shot link, a check-in QR โ is a signed credential scoped to exactly one thing and, where it matters, one sitting. A shot link dies when the chair empties. A ticket opens one walk-in's thread and nothing else. There are no passwords for customers because there are no accounts to breach โ the link IS the key, and it opens one door.
The shop's data is the shop's
The model is explicit: your book, your clients, your money, your numbers. Nightly database dumps ride with the shop's own stack. If a shop leaves, their data leaves with them โ including the texting number their clients know, which ports out on churn. Software that holds data hostage is charging rent on fear; software that hands it back charges rent on being good.
Financial sight-lines
Money is visible to exactly who should see it: owners see the whole house, artists see only their own line. Rate cards, drops, splits โ none of it leaks sideways across the roster, and none of it appears on any public surface, ever. The public wall knows who's free; it does not know what anyone makes.