iOS engineer, musician, artist. Currently working on Eki Live, a train tracking iOS app for Tokyo. Previously Cookpad, Timehop. @twocentstudios@hachyderm.io
Tokyo-to, Japan
Joined March 2011
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I wrote this! Read about my experience helping plan a 1-day offsite for our engineering team to level up our agentic engineering skills.
iOSテックリードのChrisさんが、エンジニアチームで開催した「エージェンティック・エンジニアリング・オフサイト」の様子をnoteにまとめてくれました！
プログリットのエンジニア17名がそれぞれ好きなプロジェクトに1日没頭し、AIエージェント活用のスキルを一段レベルアップする機会を設けており、企画の裏側から当日の学びまで書いてくれています😊🙌
note.com/chris_progrit/n/n2d…
New blog post: Print Design Mindset to App Design Mindset
twocentstudios.com/2026/01/2…
New blog post: Introducing Eki Bright 2.0
twocentstudios.com/2026/01/1…
New blog post: Closing the Loop on iOS with Claude Code
twocentstudios.com/2025/12/2…
A full breakdown of my build, install, launch, console logging, and simulator manipulation CLI commands to give Claude Code more opportunities to get its changes correct.
New blog post: Shinkansen Live - Developing the App for iOS
twocentstudios.com/2025/12/2…
A brain dump about the technical challenges of my latest app, Shinkansen Live.
I don't have the strength right now to investigate why the @1Password Chrome/Safari extension breaks syntax highlighting on static Jekyll blogs (including mine).
More details and screenshots:
xitter.cf/twocentstudios/status/…
New blog post: Shinkansen Live – Scan Your Ticket, Get a Live Activity
twocentstudios.com/2025/12/2…
Today I'm releasing Shinkansen Live, an iOS app for putting your Shinkansen Ticket details in a Live Activity.
Try it on your next Shinkansen trip.
New blog post: Shinkansen Live – Scan Your Ticket, Get a Live Activity
twocentstudios.com/2025/12/2…
New blog post: You Are a Frameworks Engineer at Big Tech Corp
twocentstudios.com/2025/12/1…