This year's RubyKaigi spans three buildings. Floor guide (PDF)

• Sessions:
  • #rubykaigiA (Hakodate Citizen Hall 1F-2F: Large Hall)
  • #rubykaigiB (Hakodate Arena 3F: Sub Arena)
  • #rubykaigiC (Hakodate Citizen Hall 3F: Small Hall)
• Off-session areas (Hakodate Arena 1F: Main Arena):
  • 🎫 Reception Desk
  • 🏘️ Sponsor Booths (Expo)
  • ⚡ Hack Space (sponsored by SmartBank)
  • Tamariba space (sponsored by SmartHR)
  • ☕ Drinks, Bento Boxes, Snacks
  • 📚 Bookstore
• Outside (between the hall and arena building):
  • 🍔 Food Trucks
• Others
  • 📻 Interpretation receivers: The large hall (#rubykaigiA) foyer on the Hakodate Citizen Hall ground floor

Door open: The conference venue opens at 8:30 AM on Day 1 (Wed, 22 Apr), then at 8:30 AM on the following days (Thu-Fri, 23-24 Apr).

Pre-checkin: Pre-checkin is available at the venue from 5:00 PM to 7:00 PM on Day 0 (Tue, 21 Apr). Attendees can receive their lanyard early to skip the line on Day 1.

The checkin and reception desk is located in the Main Arena.

We operate shuttle buses between the city and the venue. Capacity is limited, and seating is first-come, first-served. The bus schedule is approximate and subject to change depending on traffic conditions.

Bus to the venue

• Departs from: Group bus parking lot (函館若松町観光バス駐車場), located near Hakodate Station.
• Operating hours:
  • Day 1: departs at 8:00 AM and 8:50 AM.
  • Days 2 and 3: departs at 8:10 AM and 9:00 AM.

On Day 1 (Wed, 22 Apr), you may be asked to present your RubyKaigi ticket page (with QR code) when boarding. On the following days, please wear your conference lanyard to board the shuttle bus.

Bus to the city

• Departs from: Hakodate Arena bus stop.
• Operating hours: Departs between 6:30 PM and 6:45 PM.

On Day 1 (Wed, 22 Apr), the shuttle bus is reserved for Official Party attendees and goes directly to the party venue.

The city-bound shuttle on Days 2 and 3 has two destinations: JR Hakodate Station and the Goryokaku area. Choose your destination when boarding.

Public transport options

• Buses and trams: Available across the city. See the Hakodate City Transportation Guide for details.
• Taxi: The Go, Uber and DiDi apps are available in Hakodate.

RubyKaigi has an official Discord server to enhance communication among attendees.

Join our community from: https://rubykaigi.org/go/discord

Each session track has a dedicated chat channel. The corresponding session hall has a subscreen showing the live caption of the ongoing talk and the chat log from Discord.

We have a range of lunch options available throughout the conference. Attendees can use seating areas located in the main arena, including upstairs, to enjoy their meals.

• Food trucks: Available outside, between the hall and arena building. Lanyards are required to obtain food.
• Bento boxes: Available in the main arena.
• Local meals and drinks: Available in the main arena. Various takeout foods from local franchises and restaurants, sponsored by ANDPAD.

All three categories are offered on every conference day, though the specific menus and food trucks rotate daily.

Wi-Fi is available throughout the conference venue on a best-effort basis. Please turn off personal hotspots to keep wireless interference to a minimum in the venue.

Network name: RubyKaigi 2026
Password: hakodate

Acknowledgements: Built and operated by the RubyKaigi NOC team with members from KMC.
Contributors: Full-time staff member sponsored by IVRy. Internet connectivity and volunteers by KMC, interconnection circuits by Cookpad.

Privacy: The RubyKaigi NOC team may collect minimal traffic logs for operational, diagnostic, and statistical purposes. The RubyKaigi NOC team may publish traffic statistics in anonymised form.

Feedback: Tweet with #rubykaigiNOC, or use the #2026-chat or #noc channel on Discord to send us feedback and reports.

• Public Dashboard: https://grafana.rubykaigi.net/
• Public Code Repository: https://github.com/ruby-no-kai/rubykaigi-net

Experiments

RubyKaigi 2026 Wi-Fi runs the following experiments; Enjoy!

• v6mostly network (RFC 6052, RFC 7915, RFC 8781, RFC 8925). Use 'Legacy' SSID to disable this functionality.

We continue to enable these past experiments as well, but promoted to stable features:

• DNS over HTTPS/TLS and autodiscovery using RFC 9462
• DNS over QUIC

RubyKaigi provides Japanese-to-English live interpretation for all Japanese-spoken sessions.

Receivers are distributed to attendees at the large hall #rubykaigiA foyer on the Hakodate Citizen Hall ground floor. Attendees can bring a receiver to any session hall during the day, but receivers must be returned when leaving the conference venue.

Note: There's no English-to-Japanese live interpretation.

Find social events on our Events page. Note that an official party ticket is sold separately.

If you're registered for the Official Party, remember to visit the reception desk anytime after the keynote on Day 1 for pre-checkin.

We know that Rubyists tend to enjoy taking photos during the conference, and so do we. But we also know there are people who don't want to be photographed. Therefore, we implement an indicator for those who don't want to be photographed during the conference.

In RubyKaigi 2026, the indicator is implemented using lanyards attached to the conference badge as shown in the diagram above.

• Red lanyards: For those who have no objection to being photographed
• Blue lanyards: For those who do not want to be photographed

We ask all attendees to respect this do-not-photograph-me indicator: Avoid taking photos that include people wearing the blue lanyard.

Deliberately photographing, or persistently asking to photograph, someone against their wishes (as opposed to accidentally including them in a photo) may be considered a violation of our Code of Conduct.

Also, professional photographers engage in the conference on behalf of the RubyKaigi organizing team ("RubyKaigi photographers"). RubyKaigi may publish photos taken by the RubyKaigi photographers during or after the conference. While we do our best to avoid publishing photos that include blue-lanyard attendees, published photos of large groups may accidentally contain them. Please let us know at 2026@rubykaigi.org if this applies to you, or if you notice such a case.