Posts
Notes on what I learn while building.

Server Components
0. Background of Exploration Both at my company and on this blog, we use React Router v7. So, I only knew React Server C…
Leveraging Figma Effectively with LLMs
Last May, I had the experience of launching an e commerce service at my company in just 2 3 months of actual development…
How Should We Develop Responsive Web for PC/Mobile? (Honestly, I'm Unsure)
Introduction We had to launch the service quickly. Pages were divided among us and developed concurrently, and while the…

Tasks AI Can and Cannot Be Delegated (Building an E2E Automation Flow)
Recently, I received a sub task at work to explore delegating test code generation to AI. If you ask AI to "write test c…

Implementing Auth in react-router-v7 (remix)
When I First Joined the Company When I first joined the company, the FE authentication flow was already established. All…

2026 Q1 Retrospective (Ramblings)
2026 is the year I started at a new company. I joined on January 12th, and as of today, exactly three months have passed…
My Thoughts on Coding with AI These Days
AI is innovatively changing our lives. Developers, in particular, seem to be facing an environment where they work with …

Image Fundamentals (1) — Formats and Rendering
Images are one of the most crucial content types on the web. According to HTTP Archive, unoptimized images account for a…
What I Learned While Supporting 18 Languages
Developing global services is more complex than it seems. It's not just about replacing translated text; there are also …
I Left the Startup I Worked At for 3 Years and 6 Months
I left the company I had worked at for 3 years and 6 months. It was not a short period, and it was a place that had been…