Éder Rösner, CEO of Sinequanari Audiovisual, has a degree in Audiovisual Production from PUCRS (at Porto Alegre in Brazil) and was scriptwriter for the short films "Próprias Mentiras" (One’s Own Lies) and "Triângulo" (Triangle) during the course. In 2018, he completed a postgraduate degree in Specialization in Digital Game Development (emphasis on Game & Narrative Design) also at PUCRS and, at the end of the course, collaborated on the game "Lazarus' Valley" in the roles of game designer and narrative designer. He currently develops two fictional series projects and a interactive fiction game while, in parallel, he serves as executive production assistant in a long stading Brazilian audiovisual production company with global reach, Druzina Content, with credit in the feature film "Tales of Tomorrow" and the short film "Stone Heart".