Attendize/Attendize ? reverse-engineered prompt

Build me an open source event ticketing and event management web app like Attendize.

I want event organisers to be able to create events, sell tickets, manage attendees, and handle things like refunds, messaging, custom questions at checkout, and door check in with a QR code scanner. The app should have a clean mobile friendly public event page, a dashboard for organisers, and support for multiple organisers and multiple events.

Please include ticket customisation with things like logos and QR codes, basic stats, exports to CSV or XLS, offline payments, and support for more than one currency. It should also let organisers embed a ticket widget on their own site and share events socially.

Use Laravel and make it easy to run locally, ideally with Docker support. If you need to check current docs for Laravel or payment integrations, go ahead and look them up online.