Natural Language City Map
Turn an ordinary city request into a bounded OpenStreetMap layer.
Mayphus
I build practical systems across mechanical engineering, software, electronics, and AI.
This site collects useful results from that work.
Selected work
Infrastructure
Read the public, sanitized systems and recovery work behind this site.
Input Method Builder
Build Rime and Yuanshu input-method packages in the browser.
Alpine Builder
Build Alpine images for FriendlyElec and NanoPi boards.
Hanzi Matrix
Explore traditional Hanzi with pinyin, zhuyin, and English.
From silent UART to a working NanoPi R2S
Follow a silent UART from uncertain wiring to a verified RK3328 Alpine boot.
Recent
From silent UART to a working NanoPi R2S
An evidence-led NanoPi R2S investigation: isolate an unreliable UART path, identify a wrong Rockchip image, boot Alpine Linux, and map the RK3328 SD-card chain.
Twelve volts, one wrong pin
I tried to bring an old HiSilicon camera board back to life. The plan was cautious at first: identify the H1102NL Ethernet magnetics, verify the USB-TTL adapter with a loopback, keep its…
OpenLens: a local-first camera that admits what it does not know
Building a portable multilingual learning companion, testing offline vision on Android, and keeping model uncertainty visible.