CHAN Chak Fung, CF 陳澤鋒
Experiments & tools
Tools built to
open and use.
Practical digital tools and experiments exploring how AI, open data, mapping and emerging technology can solve real-world problems. No installs, no accounts, just click and use.
Live now
Open in your
browser.
Each app opens in a new tab, ready to use straight away.
☀️
HK Shadow
陰涼路線
A shade-aware walking route finder for Hong Kong — plots the fastest route and the shadiest route side by side, using government building, footpath and live weather data.
Open app ↗⌨️
CF Chinese Stroke Input
繁體筆劃輸入法
A Traditional Chinese stroke input tool for Windows, using the same stroke method as phone keypads. Best used with a 3×3 numeric keypad. No installation needed — download and run.
Download for Windows ↓🛠️
More apps
in the works
New browser-based tools land here as they're built.