Harke Booking is an appointment platform for salons — one system, many businesses, each seeing only its own diary. This page is a real tenant in the real production database. Pick a treatment below and book it.
Every salon shares the same tables, so the tenant boundary is the product. It is tested from the other tenant's seat as a signed-in user — not as an admin, which bypasses row-level security and makes any test pass.
The live version takes a card deposit through Yoco, credits it against the bill at the till, and verifies every webhook signature before it parses the body. Switched off here on purpose.
Slot availability accounts for each treatment's own duration plus the cleanup gap after it. Two customers tapping the same slot is arbitrated by the database, not by whichever request was luckier.
A salon pastes a single line into their existing website — no build step, no framework, no plugin. That tag is what is running on this page.