Building real-world products with code, AI and systems thinking.

I build software products, browser tools, and applied AI systems.

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Dev note: turning any text into something you can hear, read, and shadow — the story behind YomiPlay's Text-to-Speech

Got the text but no audio? YomiPlay's new Text-to-Speech turns any passage into natural narration plus synced subtitles — generated on your phone in seconds, ready for the same close-listening, shadowing, and review as any imported audio.

A Markdown editor that adds furigana to Japanese, made for my daughter — YomiNote

A Chinese-speaking fifth-grader living in Japan can read the kanji but can't always pronounce them. YomiNote was built for exactly that.

Meaning without sound — the "translucent" state of Chinese-background kids learning Japanese

Chinese-background kids learning Japanese often fall into a "translucent" state — meanings come through at a glance, but the readings stay hazy. A narrow gap worth building a tool for.

I built an app called YomiPlay — it turns Japanese audio and video into watchable, shadowable, editable, shareable learning material

Auto-transcribe meeting recordings, podcasts, and YouTube videos into clickable, furigana-aware, editable, exportable subtitles. YomiPlay isn't a player — it's a pipeline that turns a one-time listen into a reusable learning asset.

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