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Tech & Program

A page for technical projects, development notes, and engineering work. I especially enjoy mechanisms, algorithms, product building, and hands-on software making. For work or collaboration, please reach out through GitHub, X, LinkedIn, or email.

GitHub Contributions

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GitHub Contributions Graph

Timeline

Apple Swift Student Challenge 2026 Winner

Selected as one of 350 student Winners worldwide.

Advanced to ElecEng & InfoSci, The University of Tokyo

U-22 Programming Contest METI Award

Won both the METI Minister’s Award and the Sakura Internet Award for LLMView.

The University of Tokyo, Science I

Azabu High / Junior High School

Featured · 2025

LLMView

Visualization / LLM / UI

LLMの生成過程を、logits・hidden states・attentionの観点から観察する可視化UI。

Apple

I Became a Swift Student Challenge 2026 Winner

Apple Swift Student Challenge report
TeX

Making an SVG Icon with TeX and TikZ

I could not decide what favicon to use for this site, then realized I could make one with TikZ, a tool I already use often. This is a memo on the process of drawing the icon and exporting it as SVG.
Contest

I Won the Grand Prize at the MFG GPU Programming Contest 2025

MFG Challenge is a contest for creating image filters with a GPU programming language. I had touched GPU programming before, but starting from a new language was still challenging. This article focuses on the filter I made and the ideas behind it.

Awards & Recognition

Recent Articles

SemanticTower gameplay screen

I Became a Swift Student Challenge 2026 Winner

  • Contest
  • Apple
 Blue geometric favicon made with TikZ

Making an SVG Icon with TeX and TikZ

  • TeX
  • TikZ
  • Design
 Demo image after applying the watercolor filter

I Won the Grand Prize at the MFG GPU Programming Contest 2025

  • Contest
  • GPU

Encrypting Files with age

  • Encryption
  • age

Selected Projects

01

Featured / Awarded

LLMView

AIの思考が「のぞける」「さわれる」教育アプリ。LLMの推論過程を可視化・操作できるプロダクト。
  • React
  • Rust
  • Python
02

External Project

StrokeLOD

書跡・筆跡の情報をLinked Open Dataとして扱うための実験的プロジェクト。
  • Linked Data
  • Art
  • Web

Languages & Libraries

01 / Languages

Code

Algorithms, AI prototypes, and low-level systems

  • Python
  • Rust
  • C++
  • C
  • SQL
  • Swift
  • TypeScript
  • JavaScript
  • Java
  • TeX
02 / UI Stack

Interface & Libraries

Interactive visualization, web UI, and desktop apps

  • Astro
  • React
  • Tailwind CSS
  • Tauri
  • SwiftUI
  • NumPy
  • Pandas
03 / Tools

Workflow

Data, deployment, and reproducible build flow

  • Git
  • Supabase
  • Docker
  • Markdown
  • Vercel
  • Linux
  • Hugging Face
  • FastAPI
  • Flask