Get your tickets now at tickets.hackerspace.pl/cebulacamp/kkc20/1.
An all-inclusive ticket (bed in shared room for two nights, food for three days) is 500 PLN. If you want a solo room, or to share a room with someone in particular, contact firstname.lastname@example.org, or (once you bought your ticket) email@example.com.
Has a kind of vintage glare to it, eh? Totally legit!