Why a QR code at livestreams and events
Said out loud, a URL is hard to remember and gets typed with mistakes. A QR code removes that friction: the person points their phone and arrives at your destination without typing anything. On a livestream you overlay it on screen; at an event you print it on a poster, a banner, a card or a badge.
Point it at your link page rather than a single network and you offer everything at once: socials, shop, newsletter, tip jar. The viewer picks where to go, and you capture far more than a single link would give you.

