Pinyen Cheng

Building the future of AI.

About

I'm a student developer and indie maker passionate about AI, automation, and building products that solve real problems. Currently building Umbra, an autonomous AI agent for Android, and IdeaStone, an AI-powered learning platform. I love turning ambitious ideas into real, open-source products and exploring what's possible with AI.

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Tastemaker

Gone streaking

Maker History

Umbraan autonomous agent that lives on your Android phone
Oct 2026

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Joined Product HuntOctober 25th, 2026

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3h ago

Umbra - an autonomous agent that lives on your Android phone

Tell Umbra what to do. It works in the background, operates apps for you, builds and tests code in a real Linux environment on the same phone, checks its own work, and asks before anything risky.