Attended AI Requirement Definition Summit 2026

I took part in AI Requirement Definition Summit 2026, an event hosted by my own company, on the organizing side rather than as an attendee. I had little time to sit in on sessions; the day was devoted to greeting exhibitors at their booths and welcoming our customers.

Reading Notes: 『ファンベース　─ 支持され、愛され、長く売れ続けるために』(FanBase: To Be Supported, Loved, and Continue Selling Long-term) by Naoyuki Sato

Takeaways from Naoyuki Sato's 'FanBase' on how fans create fans and how to grow core supporters, read through a recruitment PR lens.

Attended Code w/ Claude Extended in Tokyo

Code w/ Claude Extended, a global series of developer events centered on Claude, came to Tokyo. I was able to attend the keynote by Boris Cherny and a tour of Anthropic's office, but had to leave before the afternoon sessions due to hosting another event. Even in that short time, the conversations I had with the team and the questions raised in the keynote shifted how I think about AI-driven development in practice.

Joined the Japan CTO Association as an Individual Member

About a year after being appointed CTO, I joined the Japan CTO Association as an individual member.

Joined the Japan Hacker Association

Prompted by the mozaic.fm Engineering Risk episode, I joined the Japan Hacker Association for free.

PDXNode Presentation Night July 2017 Participation Report

A recap of PDXNode Presentation Night in July 2017, the Portland Node.js community meetup.

Personal Sponsorship of ONDO, a Shared Office Space in Kumamoto

I personally sponsored ONDO, a shared office in Kumamoto supporting local companies and creators.

Reading Notes: 'Community Building Textbook: Cultivating Fans and Growing Business' by Azu Kawahara

Notes on Azu Kawahara's community-building book — registration curves, the 30–50 sweet spot, and the 1:1:1 ratio.

Report from 'Shibuya EC Meetup vol.2' #pbtech

A participation report from Pepabo's 'Shibuya EC Meetup vol.2' — LT sessions, a theater performance, and social hour.