Zagreb, FER, May 19th and 20th

The largest regional open source developers' conference

Proudly flossing for 29 years, the oldest Linux and free software conference in Europe

DORS/CLUC 2022 conference is over!

Conference is officially over! A big thanks to all for your attendance and help in making this a great conference. Big thanks to all of our sponsors and partners, media partners. Big penguin hugs and see you next year!!


DORS/CLUC 2022 is starting!! If you can’t be with us, join us virtually on Live Stream! For a live stream of conference Main Track, visit For a live stream of conference Gray Hall Track, visit

DORS/CLUC 2022 Gold sponsors

On behalf of DORS/CLUC organisation team, biggest gratitude to our gold sponsors, NIMIUM d.o.o. and Open IT d.o.o., for their immense support!

Workshop admissions are open!

Awesome selection of workshops this year makes it easy to choose which ones to attend. We suggest all of them! Just make sure you are on the list for the workshops you want, and don’t forget to come in earlier to to pick up your bag and accreditation on Thursday!

Talk announcement – Vlatko Kosturjak – Shifting left security with FLOSS

Vlatko, Chief Technology Officer (CTO) at Diverto, will tell us how Shift left is the current security trend in security and software development. In his talk ‘Shifting left security with FLOSS‘ we can hear all about what process to develop FLOSS software can be taken and what FLOSS tools can be used in that field…
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Talk announcement – Ivan Guštin – The book “Install Linux!”

In his lightning talk, Ivan will try to describe how he decided to combine more than 25 years of experience with Linux and its implementation on the desktops of many users with the fact that there is no literature for Linux beginners, in Croatian, for users in Croatia, and turn it into a book about:…
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Talk announcement – Hrvoje Bogner – Earthquake2020 and other disasters

What is it like to volunteer when the state gets involved in the process? What are the best steps? What was done? What could be done? You can get answers to these questions in Hrvoje’s talk ‘Earthquake2020 and other disasters’. First at the lecture, and after the lecture in breaks between other lectures 🙂 These…
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Talk announcement – Josip Stuhli – Scaling: from 0 to 20 million users

A story of how our infrastructure evolved over time to accommodate an increasing number of users – from on-premise to cloud and back down. How does one make an infrastructure to handle more than a couple of users? How do you go from 100 to 1000 to 100,000 to tens of millions? What happens when…
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Talk announcement – Georg Greve -Digital Provenance & Self Sovereign Identity

Decentralisation, self-hosting, federated services… almost anyone in the software freedom community feels these are the way to go. But the real world looks a bit different, large platforms dominate the internet. That is due to a couple of factors, and most importantly due to digital provenance and identity remaining unsolved even if we did everything…
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Talk announcement – Bruno Banelli – How FLOSS toolchains became indispensable in development of enterprise and governmental cybersecurity software

In Bruno’s talk ‘How FLOSS toolchains became indispensable in development of enterprise and governmental cybersecurity software‘ we can hear how every year, certain threats grow rapidly as cybercriminals focus their efforts on a particularly effective or lucrative attack technique. Malicious software is getting harder to detect with each newer iteration and users are getting more…
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