Tech Events in Rapperswil-Jona

It's time for a new NixOS release, 26.05 Yarara! 🎉

For a month before release, NixOS is in ZERO Hydra Failures stage. During this time, the community tries to fix all of the Hydra build failures in Nixpkgs. You can read more about the process here. The 26.05 release schedule will become available soon.

Who is this event for?
Anyone who's interested in Nix! Among the attendees you'll find core Nix contributors, full-on Nix beginners, and everything in between. This event is as much about the upcoming release as it is about engaging with the local Nix and functional programming community. It's a great opportunity to get your feet wet while helping us stabilise the next release.

Check out our user group website for more information about the venue and our agenda!

Do I need to bring anything?
A laptop would be useful. Food, drinks, coffee, tea, swag, desks, and friendly mentors are all provided. Bring as many friends as you can! 🙂 Make sure they RSVP, so we know how much food and swag to get.

Sounds great! Are there other such events?
We organise ZHF every 6 months and we organise smaller Nix meetups irregularly. NixCon 2025 also took place here in Rapperswil! Stay on top of these things by joining the Nix Zürich group or by visiting our website from time to time.

Hackathon
The main objective of the hackathon is to approach Zero Hydra Failures for the upcoming NixOS release by fixing bugs and build errors in Nixpkgs and NixOS.

A hackathon is also a great opportunity to address issues that are otherwise hard to fix or get going with. Therefore everyone can pitch projects they want to work on at the venue, and ask for assistance or schedule time to discuss their ideas or code.

Image source: Pedro Alvaro Neves (https://www.inaturalist.org/people/pedroalvaro)

The Haskell Ecosystem Workshop and the Haskell Implementors Workshop are co-located with ZuriHac!

The OST Eastern Switzerland University of Applied Sciences and the HF present a hands on continuation development ecosystem.

We are excited to announce the 2026 Workshops at ZuriHac, June 4th & 5th, 2026, organized by The Haskell Foundation and the OST Eastern Switzerland University of Applied Sciences!

In Person Attendance

Registration for in-person attendance will be managed via eventbrite. Because of the space available participation will be limited to the first 70 participants. Monad and Applicative level sponsors to the Haskell Foundation have a set of reserved seats. These reserved seats will be released to the general pool if they go unused by the sponsors.

The Workshops

The most up-to-date information on the workshops can be found on the Haskell Foundation website: https://haskell.foundation/events/

Practical Information & Schedule

The workshop will be held at the Rapperswil-Jona campus of OST. It is right next to the Rapperswil train station, at Oberseestrasse 10. The Zurihac 2025 site has instructions for transportation between Rapperswil and Zürich.

All talks and presentations will be held in an air-conditioned classroom that will be configured conference-style, which means that most seats won't have a table or desk attached. During the event, we'll let you know which additional spaces are good for compiler hacking. We will post the exact room number when that becomes available.

All times are in CEST. Speakers have been asked to plan appropriate breaks during their timeslots.

We don't expect every participant to attend every presentation. It's perfectly acceptable to skip a topic that you're less interested in so you can hack on a topic that you are interested in, taking advantage of ready access to the experts for hands-on assistance.

Preparation
This is a hands-on workshop, so please bring the equipment that you need to work (laptop, power adapter, etc). Swiss electricity is 220 volts, 50 Hz AC. Swiss power outlets are different than in many European countries, so please bring an appropriate adapter if necessary. Drinking fountains are not common in Europe, so please bring a refillable water bottle.

Checklist

• Swiss power adapter(s), if necessary
• Refillable water bottle

Lunch and Refreshments
We will eat lunch in the OST canteen, called Mensa. While Mensa is open from 11:00-13:15, it is very busy from 11:45-12:30 because classes are in session, and they've asked that we go before or after. Talks have been scheduled to account for this.

Coffee, tea, and fruit will be provided. There is also easy access to a tap for water. Dinner is on your own. There is a grocery store very near the campus where other products can be purchased as well.

Participation

Due to space constraints and to enable scholarships for student participants, there will be a fee for full on-site participation. Fees will be used to cover travel costs for presenters, other direct costs of running the event, and students who don't have other funding to attend. The fee depends on participant category:

HEW:

• Enrolled Students ($20) are participants who are enrolled full-time at an educational institution.

• Individual Professionals ($200) are no longer students and are professional developers who want to learn more Haskell.

• Corporate Participants ($600) are being paid by their employer to attend so that they can better leverage Haskell in their jobs. Corporate Participants will have their company name on their name tag and their company will be listed on the even web page as a supporter of the event.

HIW:

• Enrolled Students ($10) are participants who are enrolled full-time at an educational institution.

• General Admission ($20) for everyone else

All fees are in US dollars. We want the event to be as accessible as possible, given our limitations, so if the fee is a barrier to attending, please contact Jose Calderon at jmct@haskell.foundation to discuss a reduced or waived fee—this goes for all three categories of participant.

A certificate of completion will be available on advance request to students who attend the entire event.

Remote participation will make use of the Zurihac infrastructure. We will do our best to stream presentations and to post recordings as quickly as possible, and we will also have a chat system for remote participants.

If you or your company would like to sponsor the event, enabling more students to have financial support to attend, please contact Jose Calderon at jmct@haskell.foundation.

The Haskell Ecosystem Workshop and the Haskell Implementors Workshop are co-located with ZuriHac!

The OST Eastern Switzerland University of Applied Sciences and the HF present a hands on continuation development ecosystem.

We are excited to announce the 2026 Workshops at ZuriHac, June 4th & 5th, 2026, organized by The Haskell Foundation and the OST Eastern Switzerland University of Applied Sciences!

In Person Attendance

Registration for in-person attendance will be managed via eventbrite. Because of the space available participation will be limited to the first 70 participants. Monad and Applicative level sponsors to the Haskell Foundation have a set of reserved seats. These reserved seats will be released to the general pool if they go unused by the sponsors.

The Workshops

The most up-to-date information on the workshops can be found on the Haskell Foundation website: https://haskell.foundation/events/

Practical Information & Schedule

The workshop will be held at the Rapperswil-Jona campus of OST. It is right next to the Rapperswil train station, at Oberseestrasse 10. The Zurihac 2025 site has instructions for transportation between Rapperswil and Zürich.

All talks and presentations will be held in an air-conditioned classroom that will be configured conference-style, which means that most seats won't have a table or desk attached. During the event, we'll let you know which additional spaces are good for compiler hacking. We will post the exact room number when that becomes available.

All times are in CEST. Speakers have been asked to plan appropriate breaks during their timeslots.

We don't expect every participant to attend every presentation. It's perfectly acceptable to skip a topic that you're less interested in so you can hack on a topic that you are interested in, taking advantage of ready access to the experts for hands-on assistance.

Preparation
This is a hands-on workshop, so please bring the equipment that you need to work (laptop, power adapter, etc). Swiss electricity is 220 volts, 50 Hz AC. Swiss power outlets are different than in many European countries, so please bring an appropriate adapter if necessary. Drinking fountains are not common in Europe, so please bring a refillable water bottle.

Checklist

• Swiss power adapter(s), if necessary
• Refillable water bottle

Lunch and Refreshments
We will eat lunch in the OST canteen, called Mensa. While Mensa is open from 11:00-13:15, it is very busy from 11:45-12:30 because classes are in session, and they've asked that we go before or after. Talks have been scheduled to account for this.

Coffee, tea, and fruit will be provided. There is also easy access to a tap for water. Dinner is on your own. There is a grocery store very near the campus where other products can be purchased as well.

Participation

Due to space constraints and to enable scholarships for student participants, there will be a fee for full on-site participation. Fees will be used to cover travel costs for presenters, other direct costs of running the event, and students who don't have other funding to attend. The fee depends on participant category:

• Enrolled Students ($20) are participants who are enrolled full-time at an educational institution.

• Individual Professionals ($200) are no longer students and are professional developers who want to learn more Haskell.

• Corporate Participants ($600) are being paid by their employer to attend so that they can better leverage Haskell in their jobs. Corporate Participants will have their company name on their name tag and their company will be listed on the even web page as a supporter of the event.

All fees are in US dollars. We want the event to be as accessible as possible, given our limitations, so if the fee is a barrier to attending, please contact Jose Calderon at jmct@haskell.foundation to discuss a reduced or waived fee—this goes for all three categories of participant.

A certificate of completion will be available on advance request to students who attend the entire event.

Remote participation will make use of the Zurihac infrastructure. We will do our best to stream presentations and to post recordings as quickly as possible, and we will also have a chat system for remote participants.

If you or your company would like to sponsor the event, enabling more students to have financial support to attend, please contact Jose Calderon at jmct@haskell.foundation.