Portfolio · 2026

Learning deeper by making things.

I turn the questions I want to pursue at university into software, essays, and small experiments. This site documents the process and reflection behind them.

Index · 02—06

Explore the portfolio

Projects

Selected work

All projects
01AI / Knowledge retrieval

Bible Assistant

A study assistant that separates source text from AI explanation and keeps citations easy to verify.

  • Next.js
  • OpenAI Responses API
  • Web search
  • Citation design
View project
02AI / Japanese building regulation

AI Japan Building Regulation Assistant

A conversational research assistant that organizes building facts and searches official e-Gov and MLIT sources for relevant Japanese regulations.

  • Next.js
  • OpenAI Responses API
  • e-Gov / MLIT retrieval
View project
03AI / Japanese learning

AI Japanese Assistant

A Japanese practice assistant for university interviews and campus life that explains natural rewrites and the reasons behind them.

  • Next.js
  • OpenAI Responses API
  • NINJAL / Japan Foundation
View project

Approach

Before building an answer, turn the question into something observable.

I use technology as a tool for thinking, not as an end. I test small, gather evidence, and record why a decision changed.

More about me

Journal

Recent notes

All writing

Contact

Ready to start a conversation.

Reach out by email about university interviews, research interests, or project work.

william.professional@proton.me