https://www.openfest.org/2018/en/2018/11/03/expo-zone-at-open-fest-2018/ OpenFest is the only conference of its kind in Bulgaria, dedicated to open culture, free and open-source software, the free exchange of knowledge - a festival of the open culture. Sat, 03 Nov 2018 15:34:24 +0000 hourly 1 https://wordpress.org/?v=5.2.20