Yes the majority of the event is sponsored by @valueplan :)
If you check "timetable" / "zeitplan" on https://buzzparty.tibfox.com there are icons next to the timetable items. They mean that these things are sponsored.
The cash info thing is just for the dinner because only the main dish is sponsored. Same goes for the closing dinner on Sunday but they did not tell us to take cash with us :)
Just let us know via telegram / discord when you are near the Elphi so we can tell you where we are :) Can't wait to meet you!