Blog | Chai Pin Zheng

Build logs, hackathon writeups, and technical notes.

This archive keeps the proof trail visible: what got built, what changed, what was hard, and why the implementation choices mattered.

2026

April 2, 2026

5 min read

CChai Pin Zheng

Building SafeStep Without Turning Care Into Surveillance

How an elderly-care hackathon build used caregiver dashboards, a Node backend, and computer-vision checks without defaulting to surveillance.

hackathons social-impact computer-vision react
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