Opt-Out is organized by Parallel Polis in Prague on 04-05-06.10.2019. There will be a small selection of planter signs with QR codes present for works by Domenico Barra, Karl Heinz Jeron, Florian Kuhlmann, Bjørn Magnhildøen, Zsolt Mesterhazy, Karina Palosi, Dominik Podsiadly, Guido Segni, Jasna Velickovic, Alex Zakkas. Thanks to Rad0van Misovic!
On the history of Parallel Polis idea: https://en.m.wikipedia.org/wiki/Parallel_Polis
Site: https://opt-out.hcpp.cz/