https://www.openfest.org/2018/en/2018/02/03/save-the-date-openfest-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 Feb 2018 15:18:50 +0000 hourly 1 https://wordpress.org/?v=5.2.20