I turn user problems into shipped products.
I talk to users, work out what they need, build it, and help them use it.
Workflowy Local MCP
Local Workflowy search and editing for AI assistants.
Workflowy has no search endpoint, and full exports are limited to once a minute. I built a local search layer and desktop app, then expanded it through user feedback to 16 tools, multi-account support, and backups.
Tama
A desktop app for Japanese conversation practice.
I built Tama for my own Japanese study. It connects conversation, feedback, vocabulary review, and daily planning so each session can guide what comes next.
Koku
A focus timer designed to make session endings hard to miss.
Koku is a focus timer built to make the end of a session hard to miss, with full-screen alerts and controls on iPhone and Apple Watch.
Koe
Voice notes transcribed as you speak, on iPhone and Apple Watch.
Koe turns speech into a readable note as you talk, then files each entry by day for later browsing or sharing.