https://www.openfest.org/2018/en/2018/11/01/uber-engineering-sofia-supports-openfest/ 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. Thu, 01 Nov 2018 16:49:34 +0000 hourly 1 https://wordpress.org/?v=5.2.20