19 y/o builder. CS @ Langara. Vancouver.
I like building small tools that become useful: AI agents, learning software, Apple Watch health experiments, and personal investing notes.
Building: FretFlow
From a clip to your next riff. 从喜欢的片段，到下一次练习。
An open-source guitar practice app that brings audio/video analysis, editable chord progressions, and an interactive fretboard into one workflow.
Try FretFlow → · Source code · Feedback & ideas
- See the harmony: animated chord shapes, interval labels, Roman numerals, and connected fingering suggestions.
- Practice at your pace: loops, tempo controls, fret-range selection, mobile layouts, and Focus mode.
- Bring your own music: analyze audio/video clips or import chord symbols from ChordPro, MusicXML, and Guitar Pro.
- Keep what you learn: export PDF charts, MIDI, MusicXML, and Guitar Pro files. English / 中文 throughout.
Audio analysis produces editable estimates. Note, rhythm, and fingering transcription is in Beta and needs listening review.
Built with Next.js, React, TypeScript, Python, ChordMini, and Basic Pitch.
- pulse-watch - Apple Watch health AI app with recovery scoring and coaching
- det-practice - Duolingo English Test completion practice based on type.review
- openclaw-multi-agent - notes and architecture for building with AI agent teams
Currently learning computer science by shipping projects, building practical agent workflows, and keeping a long-term notebook around code, capital, music, and taste.