ZuriHac 2023
Saturday 10 — Monday 12, June


ZuriHac is the biggest Haskell community event in the world: a completely free, three-day grassroots coding festival organized by Zürich Friends of Haskell. It is not your standard conference with papers and presentations, but features fantastic keynotes, hands-on tracks, hacking on many of your favourite projects, and of course lots of socializing!

ZuriHac takes place Saturday 10 June — Monday 12 June 2023 as a physical event at the beautiful Rapperswil-Jona campus of OST located right next to lake Zürich. We hope to see you there!

To the registration!



Simon Peyton Jones
Simon Peyton Jones

Simon is one of the designers of the Haskell language, an inspiring leader for the whole Haskell community, a prolific researcher, and one of the main authors of GHC, the de facto standard Haskell compiler.

Gabriel Gonzalez
Gabriella Gonzalez

Gabriella is a Haskell programmer at Mercury and a deck-building game superstar. She is the author of a ton of Haskell libraries and tools including pipes and Dhall, and she also writes the amazing Haskell for all blog.

Bartosz Milewski
Bartosz Milewski

Bartosz is a physicist and C++ programmer who worked at Microsoft before starting his own company, Reliable Software. In the Haskell Community, his book Category Theory for Programmers is widely respected and frequently recommended.

Ben Lynn
Ben Lynn

Ben Lynn is a serious programmer who has written a large numer of great Haskell articles. In the wider programming community, his Git Magic guide is very popular as well.

Conal Elliott
Conal Elliott

Conal Elliott is a researcher who has written some of the coolest papers around Haskell such as Functional Reactive Animation and Compiling to categories, in addition to his work around differentiation and denotational design.


The Haskell Foundation and the GHC development team are in the process of organizing a three-day workshop on contributing to GHC, to be held at the same venue as Zurihac immediately prior, on 7-9 June. Full details are not yet available, but if you're interested, please fill out this survey.



The main organizers for ZuriHac 2023 are Jasper Van der Jeugt, Farhad Mehta, Bieke Hoefkens and Jeremy Stucki. Additional key people include Silvio Böhler, Andreas Herrmann, Niklas Hambüchen, Lukas Buchli, Raphael Das Gupta and Adam Bratschi-Kaye.

If you have any questions before the event, please reach out to to the organizers. We also monitor our official Twitter account.


Each participant will retain ownership of any and all intellectual and industrial property rights to his or her work created or used during the Hackathon.

ZuriHac uses the Berlin Code of Conduct.