Jaromil (Denis Roio) is an artist, hacker, software developer, and researcher whose work explores the intersections of art, technology, free software, and digital culture. Since the 1990s, his practice has combined artistic experimentation with the development of open technological tools, approaching software not simply as an instrument but as a cultural and creative medium.

He is the founder of Dyne.org, a free software community and research platform dedicated to developing technologies that support digital autonomy, creative experimentation, and access to communication tools. Through Dyne.org and his independent practice, Jaromil has contributed to a culture in which artists and users can actively understand, modify, and appropriate the technologies they use.

His early projects include HasciiCam, released in 2000, which transforms live video into ASCII characters and makes it possible to stream moving images over low-bandwidth internet connections; MuSE, developed for internet audio streaming; FreeJ, a real-time video manipulation and VJing environment; and dyne, a GNU/Linux distribution designed for multimedia production and recognised by the Free Software Foundation.

Across these projects, Jaromil has consistently connected technological research with artistic and social experimentation. His software has been adopted by artists, VJs, independent media practitioners, activists, and cultural communities internationally, contributing to the development of open tools for real-time audiovisual creation and networked communication.

His work has been presented and discussed internationally within art institutions, festivals, research environments, and hacker communities. In 2009, he received the Vilém Flusser Theory Award at transmediale in Berlin, recognising his contribution to critical thinking around digital culture and technology.

Through more than three decades of activity, Jaromil’s practice has challenged the distinction between artist and developer, treating code as both a creative material and a means of sharing knowledge. His work continues to investigate how technology can remain open, accessible, and capable of enabling independent forms of cultural production.