ScalaMatsuri blog

This blog is about ScalaMatsuri preparation, and sponsored by Hatena, Inc.

ScalaMatsuri 2020 will be an online-only conference.

This is a post written by ScalaMatsuri chair Taisuke Oe (@OE_uia).

We would like to inform you that [ScalaMatsuri 2020] (, scheduled on October 17th and 18th, 2020, has been an online-only conference.

See: ScalaMatsuri 2020 is postponed to October 17-18, 2020 - ScalaMatsuri blog

Due to the continuing spread of COVID-19 throughout Japan and all over the world, we have decided that going online is essential to ensure both the safety of participants and social interaction. We hope that all Scala enthusiasts will be able to enjoy this opportunity to interact with each other, since these opportunities for interaction have been greatly reduced in the wake of the corona outbreak.

Considering this will be the first time for ScalaMatsuri to be held online, on August 30th, we'll be holding a pre-ScalaMatsuri ,intended to be also a rehearsal, which is an online Lightning Talks meetup. We'll be accepting applications for both speakers and participants by the end of next week.

Edited on August 7th: Now the event page is published.

Pre-ScalaMatsuri LightningTalks online meetup

ScalaMatsuri 2020 Online Overview

At this time, we plan to use Zoom Webinar (sessions) and Discord (announcements, interactions, booths, and party).

The dates and times will continue to be October 17 and 18, 2020 (Japan time).

We will also be holding a pre-ScalaMatsuri event on Sunday, August 30th, with an online Lightning Talks meetup.

Official ScalaMatsuri online shop

This year's T-shirts will be available on the official ScalaMatsuri online shop, which will be open to the public in August. For the first time, we will have multiple colors of T-shirts available for you to choose from, so we hope you'll be able to buy one in your favorite color and use it to celebrate the event.

We will be shipping to both domestic and international destinations, but due to logistical constraints, the colors and specifications of the items may differ slightly. Thank you in advance for your understanding.

Ticket Price Revisions.

Due to major changes in online logistics, we will no longer be providing food and drinks, and as mentioned earlier, we will also be distributing attendee T-shirts separately in our online shop. We are still working on the details of simultaneous interpretation, but it will be provided during the conference part of Day 1.

Therefore, we have decided to reduce the ticket prices as follows

  • Online Regular Admission: 3,000 yen
  • Online Student Admission: FREE
  • Online 2nd day-only Admission: FREE
  • Online Ninja sponsorship: 15,000 yen

Online tickets are available from Doorkeeper:

We apologize for the inconvenience caused by this major change in the specifications for ticket holders.

Therefore, we are accepting cancellations if you wish, but please notify us by August 15 23:59 AoE (August 16 20:59 JST) using the form below. If there are no cancellations by the deadline, we will refund the difference in price.

Refund for ScalaMatsuri2020 ticket

Speaking Environment for Speakers

As communicated separately, we will be arranging the timetable according to the time zone in which the speakers live. Other confirmation and support for the online speaking environment are provided separately.

Thank you for your cooperation and response to the change in speaking arrangements.

Sponsor Benefits Modification

We have already sent out a separate notice to sponsors about how to offer benefits online.

For those sponsors who have already applied for a booth, we are taking questions, concerns, and consultations with them, especially as the specifications of the permanent booths will change significantly with the transition to virtual booths.

Lastly, I'm sure all of you reading this article have been affected by the corona outbreak in a large or small way. We would like to thank you again for your support of the event.

We look forward to seeing you all online!