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Share the link
Your own address, the link preview other apps generate from it, and how guests join with or without an account.
Your event lives at ritmus.live followed by its slug. Not a folder, not a query string, short enough to say out loud.
Publishing generates a preview card for it, with your cover at full height on the left in its native 9:16 and the details beside it. The filename carries a hash of the contents, which is what makes a changed cover show up in WhatsApp instead of the cached old one.
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The link pasted into a chat app, showing the generated preview card.
The settings panel keeps a QR code, the link and a share button together, and from the live phase onward that block sits at the top, because during a show it is the only thing anyone asks you for.
A guest opening the link needs no account. They can read the whole page and join the live show signed out. Signing in is what unlocks answering, and a signed-out tap on an RSVP, a like, a comment or a claim is remembered through sign-up and applied when they come back.