Translations are contributed by volunteers: https://events.ccc.de/congress/2019/wiki/index.php/Static:Translation#As_a_Translation_Angel https://events.ccc.de/c

Translations are contributed by volunteers: https://events.ccc.de/congress/2019/wiki/index.php/Static:Translation#As_a_Translation_Angel https://events.ccc.de/congress/2019/wiki/index.php/Static:Tr... I don't think they usually add translations after the talk, but I guess they wouldn't outright reject it if someone provided a Mandarin translation.