@ryoppippi

Tokyo Stay October-November 2025

6 Nov 2025 ・ 7 min read

I stayed in Tokyo from October 16th to November 4th, 2025. Here’s what I did.

What I Did

5 Talks

Claude Code Meetup Tokyo

Over 300 people attended in person, and more than 1000 people watched the live stream. I decided to come to Japan for this event. I was happy to meet so many people.

Slides available here

Work≠Build Meetup feat ryoppippi

A meetup where I gathered people I wanted to talk with and let them speak freely. I wasn’t feeling 100%, so I didn’t speak much, but everyone else’s talks were really interesting. The panel discussion with this group was great.

Slides available here

Work≠Build
Work≠Build
@wnb_community
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昨日開催された【Work≠Build Meetup Tokyo feat ryoppippi】は大盛況でした！ 参加していただいたみなさまありがとうございました。 今後もこのようなオフラインイベントを実施しますので ぜひ奮ってご参加いただけますと嬉しいです🌟

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Svelte Japan Offline Meetup #5 LT

ryoppippi meetup @Loglass

しんちゃん/AIOps チームマネージャー
しんちゃん/AIOps チームマネージャー
@shim_surprise
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本日はみんながお世話になっている「CCUSAGE」の開発者@ryoppippi さんをお招きして、クローズドなイベントを開催しました！💪 外ではあまり話せないぶっちゃけ話をたくさん聞けて、大変勉強になりました！☺️ ご参加いただい皆さんも、ありがとうございました！✨️ loglass-tech.connpass.com/event/372739/

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Vimconf 2025 Small LT

I hadn’t planned to attend, but I extended my Tokyo stay by a week, so it became possible. Since I was going anyway, I decided to give a talk. The regular talk proposals were already closed, so I applied for an LT slot and got accepted. I had to create a plugin from scratch. The result was about a 3-minute LT, but the effort was way more than 3 minutes lol. (At the after-party, MOPP asked me why I didn’t apply for a regular talk slot. Honestly, I wanted to talk more.)

Slides available here

ryoppippi/nvim-in-the-loop

5 YouTubes (Scheduled)

I appeared on several YouTube videos! Not all of them are uploaded yet, so I’ll update this as they come out.

Note

All the YouTube videos below are in Japanese. Please turn on subtitles if you’d like to follow along!

Vibe Loading - #026 In-depth Discussion What are the limits of AI coding? What domains can AI absolutely not handle? A conversation with ccusage developer ryoppippi

TECH WORLD - Foreign IT Engineer Conversation The joy and melancholy I discovered by developing OSS used around the world

Introduction to Split Keyboards Exploring the charm of split keyboards beloved by foreign IT engineers

Foreign IT Engineer’s Dev Environment A Vim video by a Vimmer for Vimmers (and aspiring Vimmers)

Will update as they come out

Events

I attended several events even when I wasn’t speaking!

Also, I was happy to participate in recording as vim-jp-radio staff for the first time in about a year.

I wanted to attend Hono Conf, but the tickets were released while I was sleeping and by the time I woke up, they were gone.

Shopping

I bought various things:

I was able to buy all of these despite limited stock. I was really happy.

Meeting People

This year, in addition to the usual vim-jp folks, I was able to meet many OSS developers and people I interact with on Twitter. As always, on the last night of my Japan stay, we all went out for dinner together, and this time over 10 people from VIM-JP gathered. Below are a few picks from what was posted on Twitter.

Misc

  • I definitely overpacked my schedule.
    • Even though I was there for 3 weeks, I basically never left the Yamanote line area. My schedule was too packed.
    • The only times I went outside the Yamanote line were when I went to Mitaka for business and to Tokorozawa to watch Kagaribi - just twice.
    • I wanted to go to Osaka…​ and Nikko too.
    • It was a holiday, but I didn’t really relax.
    • My schedule was pretty much full from morning to night. What even is a breakfast appointment? lol
    • Well, it was incredibly fun, so it’s all good.
  • I met a British person I first met 3 years ago. We hadn’t seen each other for a year, and they said “You’ve gained confidence, you’re completely different from before.” I was happy to hear that. Several other people said similar things.
  • In the past six months, I’ve talked more with engineers and various people online, so I was happy to meet everyone in person.
  • I’m so glad that even though I decided to come to Japan so suddenly, everyone made time to meet me.
  • I went to Niwa-no-Yu in Nerima and it was really comfortable. I want to go again.
  • I was happy to be pampered, but I also felt that ccusage is near the end of its life, so I need to work hard on the next product. But I got various ideas, so I’m grateful.

Acknowledgements

I am indebted to many people during this Japan stay. I would like to express my deep gratitude especially to the following people:

  • My wife - Thank you for waking up early to see me off and for all your support behind the scenes.
  • tomoya - Thank you for supporting my Japan stay.
  • たけて​ぃ & CONAO3 - Thank you always for letting me stay, seeing me off, and hanging out with me.
  • Everyone at VIM-JP - Thank you always. Great work on Vimconf!
  • kazupon - Thank you for inviting me to OSS Dinner and Vue Fes, and for going out to eat together.
  • eerm16g - Thank you for hosting and running the Work≠Build Meetup feat ryoppippi. It was the best meetup.
  • tech_world18 & Kei - I’m a heavy listener of TECH WORLD, so it was an honour to meet you. Please invite me to record again~~~
  • kyohei - I was happy to meet you and enjoyed having lots of tea together. We talked endlessly. Grateful for the good encounter.
  • r-aizawa - Thank you for arranging everything, starting with the all-night Smash Bros. session!

Closing

Let’s hang out again, everyone!

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