OpenFest 2026, a festival for free software, open source, knowledge, and art, will take place on November 7th and 8th, 2026, at Interpred - World Trade Center, Sofia.

A call for proposals for lectures, workshops, and stands is open until October 1st, 2026. We welcome submissions in the following thematic categories:

• Introductory: Presentations aimed at individuals taking their first steps in the IT industry and getting acquainted with open technologies. These lectures should be accessible and understandable for beginners.
• Technical: Lectures and demonstrations related to various aspects of free and open source technologies, including programming, system administration, networking, security, and other technical topics.
• OpenArt: Presentation of creative projects in the fields of music, visual arts (graphics, animation, paintings), performance, and other artistic forms that are created and shared under free licenses.
• Community and Social: Discussions and presentations related to building and managing open communities, educational initiatives, legal aspects of free licenses, the social impact of technology, user experience, and inclusivity.

All approved presentations will be recorded and published under the Creative Commons -- Attribution -- No derivatives (CC-BY-ND) license to
ensure wider dissemination of the shared knowledge.