Han（ハン）
Software Engineer
Hi, I'm Han, a Software Engineer based in Tokyo, Japan.
I build software across the stack, with a focus on developer tooling, web platforms, cloud infrastructure, and applied AI. I enjoy working on problems that sit between application development and infrastructure, from TypeScript and modern web frameworks to Kubernetes, distributed systems, APIs, and developer experience.
I'm active in open source and have contributed to the JavaScript and TypeScript ecosystem for years. I'm the creator of vite-plugin-pages and a core member of UnoCSS.
Recently, I've been exploring how LLMs and agentic systems can work with large, complex codebases, including code analysis, context retrieval, and developer tools built around AI.
Outside of work, I like building and self-hosting things. My interests include Kubernetes, Linux, networking, virtualization, smart home automation, IoT, 3D printing, diving, snowboarding, climbing, and music.