[Eduard]

first come first serve principle on three occasions.

refresh the browser a few milliseconds too late, and you will not be able to get a ticket.

The "slide the slider" captcha is an accessibility barrier.

[ognarb]

From their FAQ:

> I’m blind/I have problems with my visions and I can’t navigate your captcha.

> Please contact us.

https://events.ccc.de/congress/2023/infos/tickets.html#faq