ZuriHac 2017, 9-11 June


Beginning of June 2017, the Zurich Haskell Meetup Group will organize ZuriHac 2017, a three day Haskell Hackathon hosted at the HSR Hochschule für Technik Rapperswil. This is the sixth Haskell Hackathon organized by the Zurich Haskell Meetup Group and the first one which is hosted at the HSR. A fantastic venue located right at lake Zurich and providing space for 300 participants.

The Haskell Hackathon is an international, grassroots collaborative coding festival whose goal is to expand the community and to build and improve Haskell libraries, tools, and infrastructure.

This is a great opportunity to learn more about Haskell, meet fellow Haskellers in real life, find new contributors for your project, improve existing libraries and tools or even start new ones!

This event is open to any experience level, from beginners to gurus. In fact, one of the goals is to bring beginners in contact with experts so that the former can get a quick start in the Haskell community. We will have a dedicated beginners' track, and there are going to be mentors on site whom you can directly approach during the whole event with any Haskell-related question you have.

Supported by

Digital Asset LogoGoogle Open Source Programs Office, Google LogoHSR Logo


Edward Kmett

Edward Kmett

Keynote on Sunday 10:00
Prolific Haskell programmer, mathematician, lapsed graphics guru and demo scener, defense contractor, financial toolsmith, author of the widely-known lens library.
Stephen Diehl

Stephen Diehl

Keynote on Saturday 10:00
Stephen is a Haskell developer, entrepreneur, and financial systems architect from Boston. His open source work is around numerical computing, compilers, security, and improving Haskell documentation. Author of the amazing What I Wish I Knew When Learning Haskell.
Julie Moronuki

Julie Moronuki

Keynote on Friday 17:00
Julie is a linguist and teacher who decided, on a whim, to learn Haskell. As her interest in lambdas and static typing grew, she decided to use her teaching expertise to write a Haskell book for beginners, and the result was Haskell Programming from First Principles. Currently she lives in Austin, Texas, where she homeschools her children, adopts too many animals, teaches Haskell at a local meetup, and is working on a new book, called The Joy of Haskell.
Neil Mitchell

Neil Mitchell

Keynote on Friday 10:00
Neil Mitchell has been a Haskell programmer since his PhD at York University, where he worked on making functional programs shorter, faster and safer. Since then he's worked in industry, taking the lessons of functional programming and applying them in finance. Neil is the author of numerous open-source Haskell packages including Hlint (which makes suggestions on how to improve your Haskell code), Hoogle (which searches for functions by both name and type signature) and Shake (a build system, being used for the next iteration of the GHC build system).
Simon Thompson

Simon Thompson

Keynote on Saturday 17:00
Simon Thompson is Professor of Logic and Computation in the School of Computing at the University of Kent. His main research interests are in functional programming, most recently in designing tools to help people to write and test programs more effectively. One example of such a tool is the Haskell Refactorer. He is also the author of introductory texts on Haskell, Erlang and Miranda, as well as Type Theory and Functional Programming.


All talks and keynotes take place in the aula (building 4). Lunch is served in the mensa (building 4). Pizza and BBQ will be consumed outside (in front of building 1).

June 9
Doors open
Keynote: Neil Mitchell
10:00 – 11:00
Project presentation
11:00 – 12:00
12:30 – 14:00
Talk: Mario Meili & Cyrill Schenkel
16:00 – 17:00
Keynote: Julie Moronuki
17:00 – 18:00
18:00 – 21:00
June 10
Keynote: Stephen Diehl
10:00 – 11:00
12:00 – 14:00
Talk: Nikita Volkov
16:00 – 17:00
Keynote: Simon Thompson
17:00 – 18:00
18:00 – 21:00
June 11
Keynote: Edward Kmett
10:00 – 11:00
12:00 – 14:00
Project demos
15:00 – 16:00
End of event


Lunch coupons are sold during registration. A coupon costs CHF 30 and includes lunch for three days. Vegetarian options are available during every lunch. Of course, you are always free to go to nearby restaurants and/or supermarkets, like the past years.

  • Friday: Sliced Veal with Rösti
  • Saturday: Pasta Italian Style
  • Sunday: Sandwich

On Friday evening, a mobile pizzeria will visit the venue. Pizzas will cost around CHF 15.

On Saturday evening, there is a bring-your-own meat BBQ. Meat (or vegetarian/vegan alternatives) can be obtained from nearby supermarkets. We will provide plates, ketchup and mustard, and a seed round of a hundred sausages.


In between the talks you can join one of these projects and help the maintainers out with bug fixes or new features. We have plenty of space available in 10 separate rooms where you can team up with your peers and work on your favourite project.

To submit your project, please open a pull request.

Mikolaj Konarski

LambdaHack and haskell-game/sdl2-ttf

ASCII roguelike game and LambdaHack game engine. Regarding sdl2-ttf, merge the two sets of Haskell bindings for the SDL2 True Type font library.
Sasa Bogicevic


Haskell-Serbia is a Serbian haskell user group website. It is written in Yesod and has basic functionality for managing users and creating tutorials.
Nikita Tchayka


haskell.do is a Haskell code editor, centered around interactive development. Its main goal is to help data science tasks be easy in Haskell, as inline plotting and fast development iterations.
Bas van Dijk


opencv is a Haskell library providing a binding to the OpenCV-3.x C++ library. It binds directly with the C++ API using the inline-c Haskell library.
Artyom Kazak

Aelve Guide

Aelve Guide is a wiki for all Haskell-related things. It provides package comparisons/recommendations, code examples and usage notes; it also has pages on Haskell tools, papers, books, and so on.
Oleg Grenrus


servant is a set of packages for declaring web APIs at the type-level and then using those API specifications to write server, obtain client functions etc
Jean-Christophe Mincke


Blast is a distributed computing library inspired by Apache Spark. The current implementation provides local thread and CloudHaskell backends.The next step is to develop a set tools to easily deploy Blast on a cluster.
Vladislav Zavialov

Intermediate Haskell

Intermediate Haskell is a book that aims to fill the gap between reading LYAH and research papers. It covers topics one usually reads about in blog posts and wiki pages.
Corentin Dupont


Nomyx is a game where you can change the rules of the game itself, while playing it! In fact, changing the rules is the goal of the game.
Artem Chirkin


Qua-kit is a web platform for collaborative analysis and manipulation of simple 3D urban geometry. The website provides means to set up urban design exercises, show demos, and share proposals. We use yesod, GHCJS, and WebGL.
Robin Palotai, Ivan Krišto


Haskell Indexer generates kythe.io code crossreference data, which can then be used to browse huge codebases (similar to the former Google Code Search).
Daniel Latzer

Screeps AI

An AI for the programmer MMO RTS sandbox game Screeps. Some basic GHCJS bindings already work, but are still quite rudimentary.
Pasqualino Titto Assini


Open, evolvable, consistent and efficient distributed systems (with an awful lot of Haskell code to hack, guaranteed fun for beginners and experts alike or your money back).
Thomas Koch

Kubernetes controller

I want to test writing a K8s controller in Haskell and compare the experience with Go. Bonus: Try to use Quickcheck to test K8s code.
Mikhail Glushenkov


Work on improving basic build tools and infrastructure: cabal-install, Cabal and Hackage.
Matthew Mirman


Caledon is a higher order dependently typed logic programing language.
Siddharth Bhat

Cellular automata

Encoding pretty cellular automata in Haskell.
Jens Petersen

Fedora Haskell Stackage LTS

Building parts of Stackage LTS in Fedora Copr.
Vincent Hanquez


Modern Haskell prelude with batteries.
Nicolas Di Prima

Foundation (networking)

Network and network protocols for Haskell Foundation.
Adam Bergmark

Girella and Opaleye

Functional-relational framework using PostgreSQL.
Cyrill Schenkel

Haskell IDE support

Implement IDE features which help Haskell developers to be more efficient.
Mauro Bieg


Document converter (from and to markdown, HTML, LaTeX, docx, ePUB and many more).
Tommaso Piazza


Shared cache for build artifacts specific to iOS/MacOS/tvOS/watchOS development.
Mathieu Boespflug


Run Haskell analytics apps on Apache Spark.
Alexander Thiemann


Spock is a lightweight Haskell web framework inspired by Ruby's Sinatra.
Luka Horvat, Nikola Henezi


Database first database library with focus on: type safety, ease of use, flexibility and user friendly error messages
Ivan Perez


A Haskell FRP implementation that has been used for commercial games

Beginner projects

Mentor T-Shirt

We want to make the event accessible to Haskellers at all levels, which is why we will have dedicated mentors, two codelab projects and beginner-level Haskell exercises.

You can identify mentors from the black Zurihac shirt. They welcome any questions you may have, so please grab them if you have any issues or questions.

Codelab: memegen

The memegen codelab is available on GitHub. It guides you step by step through the implementation of a memegen server in Haskell. Its intended audience are people that want to learn more about writing web application servers in Haskell.

Codelab: webwatch

The webwatch codelab introduces you to client-side HTTP programming with a command-line webpage watcher utility that watches a webpage for links with a certain text and will send a Slack message when one is found.

Beginner exercises

The beginner exercises are for you who is just starting out with Haskell and are interested in learning the fundamentals. For reading material to supplement the exercises we recommend Learn you a Haskell.


This year the hackathon takes place at the HSR Hochschule für Technik Rapperswil. The location is about 40 minutes outside of the Zurich city.

HSR campus

We'll have plenty of space available to us: One large auditorium with enough seats for all the participants, 10 separate rooms for up to 28 people each, and a large open space.

HSR Hochschule für Technik Rapperswil
Oberseestrasse 10
8640 Rapperswil-Jona

The venue is located right next to the lake, and weather is predicted to be superb (25°C, 77℉), so feel free to bring your swimming gear.

Getting there

You can take the S7 or S15 to get from the Zurich main station to Rapperswil. These trains run regularly in 30 minute and 60 minute intervals, respectively.

If you arrive at the Zurich airport, first take the train to the Zurich main station and then continue with S7 or S15. Trains from the airport towards the city run every few minutes.

Tickets: If you stay in Zurich city, get a day pass for all zones. It's good for all public transportation around Zurich, up to Rapperswil. A one-way ticket costs 17.20CHF, the day pass 34.40CHF. If you want to stay closer to the venue and save on transportation, please see the section further below with accomodation suggestions around Rapperswil.

Getting around

See this map for more information on accomodation, grocery stores, and other useful places.



If you have any questions before the event, please reach out to Jasper Van der Jeugt or Simon Meier.

Before the event, and in particular during the event, you can find us and other participants at Zurihac Slack or on the #zurihac channel on freenode (open in your IRC client. In addition, feel free to post on Twitter and Google+ using the hashtag #ZuriHac2017.

Terms and Conditions

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.